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WO2019162470A1 - Method for treating keratin materials using lemon savoury hydrosol, and cosmetic composition containing same - Google Patents

Method for treating keratin materials using lemon savoury hydrosol, and cosmetic composition containing same Download PDF

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Publication number
WO2019162470A1
WO2019162470A1 PCT/EP2019/054491 EP2019054491W WO2019162470A1 WO 2019162470 A1 WO2019162470 A1 WO 2019162470A1 EP 2019054491 W EP2019054491 W EP 2019054491W WO 2019162470 A1 WO2019162470 A1 WO 2019162470A1
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WIPO (PCT)
Prior art keywords
skin
hydrolate
composition
hydrosol
citriodora
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PCT/EP2019/054491
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French (fr)
Inventor
Marion GABANT
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LOreal SA
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LOreal SA
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00Preparations for care of the skin
    • A61Q19/02Preparations for care of the skin for chemically bleaching or whitening the skin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K36/00Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
    • A61K36/18Magnoliophyta (angiosperms)
    • A61K36/185Magnoliopsida (dicotyledons)
    • A61K36/53Lamiaceae or Labiatae (Mint family), e.g. thyme, rosemary or lavender
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/96Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
    • A61K8/97Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution from algae, fungi, lichens or plants; from derivatives thereof
    • A61K8/9783Angiosperms [Magnoliophyta]
    • A61K8/9789Magnoliopsida [dicotyledons]

Definitions

  • the present invention relates to the field of cosmetic products, more particularly intended for the care of keratinous substances, in particular for the care of the skin of the face and / or the body.
  • the invention relates to the Lemon savory hydrosol (Satureja montana L ssp.Ci-triodora), a cosmetic composition comprising it, a method of preparation, the use of said lemon savory hydrolate (Satureja montana L. ssp. citriodora) for the treatment of keratin materials and in particular the skin; and a process for the treatment of keratin materials using these said Lemon Savory hydrolates (Satureja montana L. subsp. citriodora).
  • the present invention aims to propose the use of a new active ingredient for effectively depigmenting and / or lightening, or even bleaching, keratin materials, in particular the skin of the face and / or the body and / or improving the complexion, in particular its homogeneity and its brilliance.
  • the color of human keratin materials, especially human skin, is mainly determined by the nature and concentration of a pigment, melanin.
  • the mechanism of melanogenesis that is, the mechanism of melanin formation, is particularly complex and schematically involves the following main steps:
  • tyrosinase is the essential enzyme that regulates the first stages of the synthesis of pheomelanin and eumelanin which are the two types of melanin.
  • the pigmentation of the skin of the face and / or the body, and more particularly the pigmentation of the skin, is a function of various factors such as environmental factors related to the seasons of the year, and the origin of the individual. .
  • a molecule is recognized as depigmenting if, in particular, it interferes with one of the stages of melanin biosynthesis either by inhibiting one of the enzymes involved in melanogenesis or by intercalating itself as a structural analog of one of the chemical compounds of the synthesis chain of melanin, which chain can then be blocked and thus ensure depigmentation.
  • the main known depigmenting substances are hydroquinone and its derivatives, in particular its ethers such as monomethyl ether and hydroquinone monoethyl ether, kojic acid, arbutin and the like.
  • the depigmenting substances may exhibit, in particular, a certain instability, a low efficiency at low concentration, a biological activity affecting other functions, etc.
  • topical depigmenting substances having a good efficacy is particularly desired in order to depigment and / or to lighten efficiously, or even to whiten the keratin materials, in particular the skin, and / or prevent, reduce and / or treat an alteration of the skin tone or shade of the semi- mucous membranes, that is to say to improve the uniformity of the complexion and / or to revive the radiance of the skin. complexion.
  • the applicant company has surprisingly and unexpectedly discovered that the Lemon Savory hydrolate (in particular Satureja montana ssp. variegata or ci-triodoraj has a good depigmenting activity for keratin materials and an action to prevent, to reduce and / or treat an alteration of the skin tone or the shade of the semi-mucous membranes, that is to say, an activity which makes it possible to improve the homogeneity of the complexion and to revive the radiance of the complexion even at low concentration.
  • the Lemon Savory hydrolate in particular Satureja montana ssp. variegata or ci-triodoraj has a good depigmenting activity for keratin materials and an action to prevent, to reduce and / or treat an alteration of the skin tone or the shade of the semi-mucous membranes, that is to say, an activity which makes it possible to improve the homogeneity of the complexion and to revive the radiance of the complexion even at low concentration.
  • a first subject of the invention is a process for treating keratin materials, in particular the skin, for depigmenting, lightening and / or whitening keratinous substances, in particular the skin of the face and / or the body, and / or for to prevent, reduce and / or treat an alteration of the skin complexion or the hue of semi-mucous membranes using at least one lemon savory hydrosol, in particular Satureja montana ssp. variegata or citriodora, or at least one cosmetic composition comprising at least one Lemon savory hydrosol, in particular Satureja montana ssp. variegata or citriodora.
  • the present invention also relates to the cosmetic use of at least one lemon savory hydrolate, in particular Satureja montana ssp. variegata or citrio dora, as an active ingredient for depigmenting, lightening and / or whitening keratinous substances, especially the skin of the face and / or the body, and / or for preventing, reducing and / or treating an alteration of the complexion of the skin. skin or shade of semi-mucous membranes.
  • the inventors have in fact demonstrated that the aforementioned sulfuric acid hydrolate (Satureja monana ssp, variegata or citriodora) as defined in the present invention exhibits a depigmenting, lightening or even whitening activity of the keratinic materials, in particular the skin. More particularly, it has been shown, as detailed in the experimental section below, that these hydrolates of Lemon Savory, in particular WcuUerSatureja montana ssp. variegata or citriodora, reduce the synthesis of melanin.
  • these hydrolates of Lemon Savory in particular WcuUerSatureja montana ssp. variegata or citriodora
  • the present invention also aims at protecting a non-therapeutic cosmetic treatment process for depigmentation, lightening and / or bleaching of keratin materials, in particular of the skin of the face and / or of the body and / or of prevention, reduction and / or treatment of an alteration of the skin tone or the shade of the semi-mucous membranes comprising at least one step of applying to said keratin materials and in particular the skin of the face and / or the body at least one composition comprising at least one lemon savory hydrosol, in particular Saureja montana ssp. variegata or citriodora, as defined in the present invention.
  • a hydrolate is a generally very dilute product, obtained from a botanically defined raw material, by steam distillation.
  • the hydrolate (aqueous phase) is most often separated from the essential oil by a physical process that does not cause a significant change in the composition.
  • the hydrosol according to the invention can be prepared preferably according to the conventional technique of steam distillation.
  • the hydrosol can be obtained from a whole plant, preferably a plant, a shrub or a flower, or a part of this plant selected from flowers, leaves, stems, seeds, fruits, roots, petals , buds, barks, which may be at various states of dryness (dry, withered, fresh form), and mixtures thereof.
  • the Lemon Savory hydrolate a characteristic plant of the Vercors and the Alps, (Satureja montana L. ssp Citriodora) in particular Satureja montana ssp. variegata or citriodora is preferentially obtained after steam distillation of the flowering aerial parts of the plant, generally at a biomass / hydrolate ratio of 1: 1 and without cohesion, for approximately a period ranging from 30 minutes to 8 hours, preferably between 1 and 4 hours, more particularly between 1 and 2 hours such as 1 h30 min.
  • Lemon savory hydrosol is a water-soluble, colorless liquid with a fresh, aromatic, slightly herbaceous odor and a lemony note, containing a large quantity of water such as greater than 90%, in particular greater than 95%, more particularly greater than 98%.
  • the main organic component of the hydrolate is geraniol, which is present in a content of at least 0.03% by total weight of said hydrolyzate, in particular of about 0.05% by weight, for example in a content between 0.04% and 0.06%.
  • the other main organic components of the lemon savory hydrolate according to the invention are generally nerol, citral and octene-1-OI-3.
  • Another object of the invention is a lemon savory hydrolate, in particular Satureja montana ssp. variegata or citriodora, and especially a hydrolate as obtained in Example 1.
  • the aqueous phase (water and optionally the solvent miscible with water) may be present in the composition in a content ranging from 0.1% to 99.9% by weight, relative to the total weight of the composition, for example ranging from from 40% to 95% by weight
  • compositions Another object of the invention is a composition, in particular a cosmetic or dermatological composition, containing at least one lemony savory hydrolate (Satureja montana ssp variegata or citriodora), in particular Satureja montana ssp. variegata or citriodora.
  • lemony savory hydrolate Satureja montana ssp variegata or citriodora
  • the composition comprises at least one sun lemon savory hydrolate and at least one essential oil, in particular at least one essential oil of lemon savory (Satureja montana L. ssp Citriodora).
  • composition according to the invention comprises at least one lettuce savory hydrosol.
  • this hydrolate may form a substantial, majority or minor part of said composition.
  • said composition may comprise less than 50% by weight of said hydrolate, relative to the total weight of this composition.
  • said composition may comprise less than 40% by weight of said hydrosol, in particular less than 30% by weight of said hydrosol, less than 20% by weight of said hydrolat, less than 10% by weight of said hydrosol , or even less than 1% by weight of said hydrosol.
  • this composition may comprise less than 10% by weight of said hydrosol, for example less than 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2% 1%, 0.9%, 0.8%, 0.7%, 0.6%, 0.5%, 0.4%, 0.3%, 0.2% or even less than 0.1%, by weight of said hydrolate relative to the total weight of the composition.
  • said composition may comprise at least 10% by weight of said hydrolate relative to the total weight of the composition.
  • said composition may comprise 30% or more than 30% by weight of said hydrolate, for example 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, or more than 50% by weight, based on the total weight of the composition.
  • this composition may comprise more than 60% by weight of said hydrolate relative to the total weight of the composition, which includes more than 70%, more than 80%, even more than 90% by weight of the total weight of the composition. composition.
  • this hydrosol is preferably used in a content of at least 30% by weight, relative to the total weight of the composition.
  • a cosmetic or dermatological composition according to the invention may be characterized in that it contains at least 30% by weight of lemon savory hydrolate, in particular Satureja montana ssp. variegata or citriodora; especially at least 40% by weight of Lemon Savory Hydrolyzate; especially at least 50% by weight of Lemon Savory Hydrolyzate.
  • a composition according to the invention may be characterized in that the hydrolate, or a composition comprising said hydrolate, comprises geraniol.
  • the composition comprising said hydrolate may contain at least 0.003% by weight of geraniol relative to the total weight of the composition.
  • this composition may comprise at least 0.003% by weight of geraniol relative to the total weight of the composition.
  • a composition according to the invention may be characterized in that the hydrolate, or a composition comprising said hydrolate, comprises nerol, citral and / or octene-1-ol-3.
  • composition according to the invention may be characterized in that it comprises geraniol, nerol of citral and octene-1-ol-3.
  • nerol, citral and octene-1-ol-3 at least 0.0001% by weight of nerol, citral and octene-1-ol-3.
  • composition according to the invention can be characterized in that it comprises:
  • compositions according to the invention may, if appropriate, comprise a mixture of essential oils and hydrosols.
  • composition according to the invention may comprise an essential oil of Lemon Savry in excess of volume relative to the hydrosol.
  • said hydrolate may be in excess of volume relative to the essential oil.
  • compositions according to the invention may, if appropriate, comprise essential oils or hydrolates other than those obtained from Lemon Savory.
  • Particularly cosmetic compositions that may be used in the context of the invention generally comprise a physiologically acceptable medium, preferably a cosmetically acceptable medium.
  • compositions according to the invention may be in any of the galenical forms conventionally used for topical application and especially in the form of aqueous, hydroalcoholic solutions, oil-in-water (O / W) or water-in-water emulsions.
  • These compositions are prepared according to the usual methods.
  • compositions according to the invention may also be in anhydrous form, for example in the form of an oil.
  • anhydrous composition means a composition containing less than 1% by weight of water, or even less than 0.5% of water, and especially free of water, the water not being added during the preparation of the composition but corresponding to the residual water provided by the mixed ingredients.
  • the term “prevent” or “prevention” means to reduce, at least in part, the risk of occurrence of a given phenomenon, ie in the present invention an alteration of the complexion of the skin or shade of semi-mucous.
  • the term “keratin materials” in particular means skin
  • skin is meant all of the skin of the body, including the scalp, mucous membranes and semi-mucous membranes. . More particularly, in the present invention, the skin of the neck, neck and face, the hands, the armpits and in particular the skin of the face are considered. According to another particular embodiment of the invention, the composition is intended for topical administration to keratin materials such as the skin.
  • the said hydrolate (or the said composition comprising the said hydrolate) may be used, in the context of a use or a method according to the invention, by the tic route.
  • the invention relates to a user or a method in which said hydrolate or said composition is administrable topically.
  • the invention therefore also relates to a Lemon savory hydrosol, in particular Satureja montana ssp. variegata or citriodora, (or a composition comprising said hydrolate) intended to be administered topically
  • a Lemon savory hydrosol in particular Satureja montana ssp. variegata or citriodora
  • said hydrolate or said composition comprising said hydrolate
  • said hydrolate is implemented topically.
  • topical route is meant an application on the surface of the skin in question.
  • compositions comprising the said hydrosol may or may not be followed by a rinsing step with water.
  • the application is repeated for example 1 to 3 times daily over a day or several days, preferably 1 to 2 times per day, and particularly over a prolonged period of at least 4, even 4 to 15 weeks, with one or more periods of interruption if necessary.
  • compositions according to the invention may be applied directly to the skin or, alternatively, to occlusive or non-occlusive type cosmetic supports intended to be applied in a localized manner to the skin.
  • occlusive or non-occlusive type cosmetic supports intended to be applied in a localized manner to the skin.
  • non-limiting cosmetic media there may be mentioned a patch, a wipe, a roll-on and a pen.
  • composition according to the present invention will comprise according to a particular embodiment, in addition to a Lemon savory hydrosol, in particular Satureja montana ssp. variegata or citriodora, as defined above, at least one additional asset for the care of the skin, such as aged skin, dull skin, oily or oily skin.
  • composition may be rinsed or not after being applied to the skin. Moreover, after application of the composition according to the invention, it is possible to apply to the surface of the skin a composition comprising one or more active agents chosen from antibacterials, antifungals and / or powders.
  • additional skin care active ingredient is meant, in the context of the present invention, a compound which has by itself, that is to say not requiring the intervention of an external agent to activate it, has a beneficial biological activity for the skin.
  • the composition further comprises a physiologically acceptable medium, which is preferably a cosmetically or pharmaceutically, including dermatologically acceptable medium, that is to say without odor, color or unpleasant appearance, and which does not generate tingling. , tugging unacceptable to the user.
  • a physiologically acceptable medium which is preferably a cosmetically or pharmaceutically, including dermatologically acceptable medium, that is to say without odor, color or unpleasant appearance, and which does not generate tingling. , tugging unacceptable to the user.
  • the composition is adapted for topical application to the skin and appendages.
  • physiologically acceptable medium an environment compatible with human skin and appendages is understood.
  • composition according to the invention may then comprise water and / or all the adjuvants usually employed in the intended field of application.
  • organic solvents especially C 1 -C 6 alcohols and C 2 -C 10 carboxylic acid esters
  • carbonaceous and / or silicone oils of mineral, animal and / or vegetable origin
  • water waxes, pigments, fillers, dyes, surfactants, emulsifiers, co-emulsifiers
  • cosmetic or dermatological active agents UV filters, polymers, hydrophilic or lipophilic gelling agents, thickeners, preservatives, perfumes, bactericides, odor absorbers, antioxidants.
  • These optional adjuvants may be present in the composition in a proportion of 0.001 to 80% by weight, especially 0.1 to 40% by weight, relative to the total weight of the composition.
  • compositions according to the invention may comprise at least 5% by weight of lemon savory hydrolate relative to the total weight of the composition, and a physiologically acceptable medium.
  • compositions according to the invention may comprise at least 5% by weight of lemon savory hydrolate relative to the total weight of the composition, at least one adjuvant, such as those described above, and a physiologically acceptable medium. ceptable.
  • compositions according to the invention may comprise at least 10% by weight of lemon savory hydrolate relative to the total weight of the composition, and a physiologically acceptable medium.
  • compositions according to the invention may comprise at least 10% by weight of lemon savory hydrolate relative to the total weight of the composition, at least one adjuvant, such as those described above, and a physiologically acceptable medium. ceptable.
  • the compositions according to the invention may comprise at least 30% by weight of lemon savory hydrolate relative to the total weight of the composition, and a physiologically acceptable medium.
  • the compositions according to the invention may comprise at least 30% by weight of lemon savory hydrolate relative to the total weight of the composition, at least one adjuvant, such as those described above, and a physiologically acceptable medium. ceptable.
  • the composition according to the invention may constitute a make-up composition, or preferably a skincare composition, and in particular a cream for cleaning, protecting, treating or caring for the face, for the hands, for the feet, for large anatomical folds or for the body (for example, day creams, night creams, make-up removing creams, foundation creams, sunscreen creams); a fluid foundation, a make-up removal milk, a body care or protection milk, an anti-sun milk; a lotion, gel or mousse for the care of the skin, such as a cleaning lotion, a hair composition.
  • a cream for cleaning, protecting, treating or caring for the face, for the hands, for the feet, for large anatomical folds or for the body for example, day creams, night creams, make-up removing creams, foundation creams, sunscreen creams
  • a fluid foundation for a make-up removal milk, a body care or protection milk, an anti-sun milk
  • a lotion, gel or mousse for the care of the skin, such as a cleaning
  • Example 1 Obtaining a Lemon Savory Hydrolate
  • Lemur savory hydrolate was prepared from the aerial parts of the plant at the full bloom stage by distillation of 5 kg fresh by steaming for 1 hour 30 minutes in a 50 liter distiller.
  • the volume of hydrolate obtained was of the order of 5 L.
  • the hydrolate obtained comprises as major components (by weight relative to the total weight of the hydrolate):
  • Geraniol 0.05% by weight
  • composition of the obtained hydrolate was determined by gas chromatography (GC) and mass spectrometry.
  • normal human melanocytes are cultured and distributed in a multiwell plate. After 24 hours, the culture medium was replaced by a medium containing the compounds of formula (I) to be evaluated. The cells were incubated for 72 hours before measuring the final optical density which measures the amount of melanin produced by the melanocytes. The measurement was calibrated and the compounds were tested at 100 mM.
  • a biological test revealed the depigmenting activity of a lemon savory hydrolate (Satureja montana ssp variegata or citriodora).
  • nogenesis of a lemon savory hydrolate was measured according to the method described in FR-A-2734825, as well as in the article by R. Schmidt,
  • IC50 values concentration for which 50% of melanin synthesis is inhibited
  • Lemon Savory (Satureja montana ssp. variegata or citriodora) hydrolate has depigmenting properties on the co-culture model.
  • a depigmenting gel is prepared for the skin. It comprises the following ingredients (% by weight relative to the total weight of the composition):
  • composition according to the invention applied to the skin makes it possible to homogenize the complexion, in particular to fade brown spots.
  • Example 5 Composition according to the invention
  • a depigmenting cream is prepared for the skin, especially the face. It comprises the following ingredients (% by weight relative to the total weight of the composition)

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Abstract

The present invention relates to a method for cosmetically treating keratin materials, in particular the skin, including the application to said keratin materials, such as the skin, of a composition comprising at least one lemon savoury hydrosol, in particular Satureja montana L. ssp. citriodora. The invention relates in particular to the non-therapeutic cosmetic use of at least one lemon savoury hydrosol, in particular Satureja montana L. ssp. citriodora, as an agent for whitening, lightening and/or depigmenting keratin materials, in particular the skin.

Description

PROCEDE DE TRAITEMENT DES MATIERES KERATINIQUES A PARTIR D’HYDROLAT DE SARRIETTE CITRONNEE, ET LA COMPOSITION COSMETIQUE LES CONTENANT  PROCESS FOR TREATING KERATINIC MATERIALS FROM CITRONNEED SARRIETTE HYDROLAT AND THE COSMETIC COMPOSITION CONTAINING SAME

La présente invention concerne le domaine des produits cosmétiques, plus particulière ment destinés au soin des matières kératiniques, notamment au soin de la peau du vi- sage et/ou du corps. The present invention relates to the field of cosmetic products, more particularly intended for the care of keratinous substances, in particular for the care of the skin of the face and / or the body.

L’invention se rapporte à l’hydrolat de Sarriette Citronnée ( Satureja montana L ssp. Ci- triodora), une composition cosmétique le comprenant, un procédé de préparation, l’utili- sation dudit hydrolat de Sarriette Citronnée ( Satureja montana L. ssp. citriodora) pour le traitement des matières kératiniques et notamment la peau ; et un procédé de traite ment des matières kératiniques mettant en oeuvre cesdits hydrolats de Sarriette Citron- née ( Satureja montana L ssp. citriodora). The invention relates to the Lemon savory hydrosol (Satureja montana L ssp.Ci-triodora), a cosmetic composition comprising it, a method of preparation, the use of said lemon savory hydrolate (Satureja montana L. ssp. citriodora) for the treatment of keratin materials and in particular the skin; and a process for the treatment of keratin materials using these said Lemon Savory hydrolates (Satureja montana L. subsp. citriodora).

Plus particulièrement, la présente invention vise à proposer l’utilisation d’un nouvel actif pour dépigmenter et/ou éclaircir efficacement, voire blanchir, les matières kératiniques, notamment la peau du visage et/ou du corps et/ou améliorer le teint, notamment son homogénéité et son éclat.  More particularly, the present invention aims to propose the use of a new active ingredient for effectively depigmenting and / or lightening, or even bleaching, keratin materials, in particular the skin of the face and / or the body and / or improving the complexion, in particular its homogeneity and its brilliance.

La couleur des matières kératiniques humaines, notamment de la peau humaine est principalement déterminée par la nature et la concentration d’un pigment, la méla- nine. The color of human keratin materials, especially human skin, is mainly determined by the nature and concentration of a pigment, melanin.

Le mécanisme de la mélanogénèse, c’est-à-dire le mécanisme de formation de la mélanine, est particulièrement complexe et fait intervenir schématiquement les princi- pales étapes suivantes :  The mechanism of melanogenesis, that is, the mechanism of melanin formation, is particularly complex and schematically involves the following main steps:

Tyrosine— > Dopa— > Dopaquinone— > Dopachrome— > Mélanine  Tyrosine-> Dopa-> Dopaquinone-> Dopachrome-> Melanin

Plus particulièrement, la tyrosinase est l’enzyme essentielle qui régule les pre- mières étapes de la synthèse de la phéomélanine et de l’eumélanine qui sont les deux types de mélanine.  More particularly, tyrosinase is the essential enzyme that regulates the first stages of the synthesis of pheomelanin and eumelanin which are the two types of melanin.

La pigmentation de la peau du visage et/ou du corps, et plus particulièrement la pigmentation de la peau, est fonction de différents facteurs tels que des facteurs envi- ronnementaux liés aux saisons de l’année, et l’origine de l’individu.  The pigmentation of the skin of the face and / or the body, and more particularly the pigmentation of the skin, is a function of various factors such as environmental factors related to the seasons of the year, and the origin of the individual. .

En outre, à différentes périodes de leur vie, certaines personnes voient apparaître sur leur peau et plus spécialement sur les mains, des taches plus foncées et/ou plus colorées, conférant à la peau une hétérogénéité. Ces taches, classées parmi les altéra- tions pigmentaires bégnines inesthétiques, sont dues aussi à une concentration impor- tante de mélanine dans la peau. In addition, at different periods of their lives, some people see on their skin and especially on the hands, darker spots and / or more colored, conferring on the skin a heterogeneity. These spots, which are classified as unsightly benign pigmentary alterations, are also due to a high concentration of melanin in the skin.

De nombreux procédés, principalement à visée cosmétique, ont donc été déve- loppés afin de tenter d’éliminer ou de réduire la présence de ces altérations pigmentaires bénignes inesthétiques. L'élimination ou la réduction de la présence de ces altérations repose, d'ordinaire, sur l'application de traitements dépigmentants, basés sur la réduc- tion de l'activité de synthèse de la mélanine dans les mélanocytes. Les molécules dé- pigmentantes sont à distinguer des molécules anti-pigmentantes qui limitent l’action des stress responsables de la pigmentation dus par exemple aux rayonnements ultraviolets.  Numerous processes, mainly for cosmetic purposes, have therefore been developed in an attempt to eliminate or reduce the presence of these unsightly benign pigmentary changes. The elimination or reduction of the presence of these alterations is usually based on the application of depigmenting treatments, based on the reduction of melanin synthesis activity in melanocytes. The de-pigmenting molecules are distinguished from anti-pigmenting molecules which limit the action of the stresses responsible for pigmentation due for example to ultraviolet radiation.

Plus précisément, une molécule est reconnue comme dépigmentante si, notam- ment, elle interfère avec une des étapes de la biosynthèse de la mélanine soit en inhibant une des enzymes impliquées dans la mélanogénèse, soit en s’intercalant comme ana- logue structural d’un des composés chimiques de la chaîne de synthèse de la mélanine, chaîne qui peut alors être bloquée et ainsi assurer la dépigmentation.  More precisely, a molecule is recognized as depigmenting if, in particular, it interferes with one of the stages of melanin biosynthesis either by inhibiting one of the enzymes involved in melanogenesis or by intercalating itself as a structural analog of one of the chemical compounds of the synthesis chain of melanin, which chain can then be blocked and thus ensure depigmentation.

L'une des voies principales explorées à ce jour repose sur l'inhibition de la tyro- sinase. Le but de ces traitements est de diminuer voire de stopper la synthèse de pig ment.  One of the main routes explored so far is the inhibition of tyrosine. The purpose of these treatments is to reduce or even stop the synthesis of pigment.

Les principales substances dépigmentantes connues sont l'hydroquinone et ses dérivés, en particulier ses éthers tels que le monométhyléther et le monoéthyléther d'hy- droquinone, l'acide kojique, l'arbutine, etc.  The main known depigmenting substances are hydroquinone and its derivatives, in particular its ethers such as monomethyl ether and hydroquinone monoethyl ether, kojic acid, arbutin and the like.

Toutefois, il existe des inconvénients majeurs liés à l’utilisation des agents dépig- mentants précités. En effet, les substances dépigmentantes peuvent présenter notam- ment une certaine instabilité, une faible efficacité à faible concentration, une activité bio- logique touchant d'autres fonctions, etc.  However, there are major disadvantages related to the use of the above depigmenting agents. Indeed, the depigmenting substances may exhibit, in particular, a certain instability, a low efficiency at low concentration, a biological activity affecting other functions, etc.

Par exemple, pour ce qui est de l’hydroquinone et de ses dérivés, bien que ces composés présentent une efficacité certaine, ils ne sont malheureusement pas exempts d'effets secondaires, ce qui peut rendre leur emploi délicat, voire dangereux. Ainsi, l'uti- lisation de substances dépigmentantes topiques inoffensives présentant une bonne effi- cacité est tout particulièrement recherchée en vue de dépigmenter et/ou d’éclaircir effi cacement, voire de blanchir les matières kératiniques, notamment la peau, et/ou de pré- venir, réduire et/ou traiter une altération du teint de la peau ou de la teinte des semi- muqueuses, c’est-à-dire notamment d’améliorer l’homogénéité du teint et/ou de raviver l’éclat du teint. Il subsiste donc le besoin d'un nouvel agent blanchissant des matières kérati- niques, notamment de la peau qui permette en outre notamment d’améliorer l’homogé- néité du teint et de raviver l’éclat du teint, à action aussi efficace que ceux connus, mais n'ayant pas leurs inconvénients, c'est-à-dire qui soit stable, facilement formulables y compris dans des compositions aqueuses, et/ou efficace même à faible concentration. For example, with respect to hydroquinone and its derivatives, although these compounds have a certain effectiveness, they are unfortunately not free of side effects, which can make their use difficult, even dangerous. Thus, the use of harmless topical depigmenting substances having a good efficacy is particularly desired in order to depigment and / or to lighten efficiously, or even to whiten the keratin materials, in particular the skin, and / or prevent, reduce and / or treat an alteration of the skin tone or shade of the semi- mucous membranes, that is to say to improve the uniformity of the complexion and / or to revive the radiance of the skin. complexion. There is therefore still a need for a new whitening agent for keratinous materials, in particular for the skin, which also makes it possible, in particular, to improve the homogeneity of the complexion and to revive the radiance of the complexion, which is as effective as those known, but not having their disadvantages, that is to say which is stable, easily formulated including in aqueous compositions, and / or effective even at low concentration.

A cet égard, la société déposante a de manière surprenante et inattendue découvert que l’hydrolat de Sarriette Citronnée (en particulier Satureja montana ssp. variegata ou ci- triodoraj présente une bonne activité dépigmentante des matières kératiniques ainsi qu’une action permettant de prévenir, réduire et/ou traiter une altération du teint de la peau ou de la teinte des semi-muqueuses, c’est-à-dire notamment une activité permet- tant d’améliorer l’homogénéité du teint et de raviver l’éclat du teint, même à faible con- centration. In this respect, the applicant company has surprisingly and unexpectedly discovered that the Lemon Savory hydrolate (in particular Satureja montana ssp. variegata or ci-triodoraj has a good depigmenting activity for keratin materials and an action to prevent, to reduce and / or treat an alteration of the skin tone or the shade of the semi-mucous membranes, that is to say, an activity which makes it possible to improve the homogeneity of the complexion and to revive the radiance of the complexion even at low concentration.

Un premier objet de l’invention est un procédé de traitement des matières kératiniques, en particulier de la peau, pour dépigmenter, éclaircir et/ou blanchir les matières kérati niques, notamment la peau du visage et/ou du corps, et/ou pour prévenir, réduire et/ou traiter une altération du teint de la peau ou de la teinte des semi-muqueuses mettant en oeuvre au moins un un hydrolat de Sarriette Citronnée, en particulier Satureja montana ssp. variegata ou citriodora, ou au moins une composition cosmétique comprenant au moins un hydrolat de Sarriette Citronnée, en particulier Satureja montana ssp. variegata ou citriodora. A first subject of the invention is a process for treating keratin materials, in particular the skin, for depigmenting, lightening and / or whitening keratinous substances, in particular the skin of the face and / or the body, and / or for to prevent, reduce and / or treat an alteration of the skin complexion or the hue of semi-mucous membranes using at least one lemon savory hydrosol, in particular Satureja montana ssp. variegata or citriodora, or at least one cosmetic composition comprising at least one Lemon savory hydrosol, in particular Satureja montana ssp. variegata or citriodora.

La présente invention a pour objet également l’utilisation cosmétique d’au moins un hy- drolat de Sarriette Citronnée, en particulier Satureja montana ssp. variegata ou citrio dora, à titre d’actif pour dépigmenter, éclaircir et/ou blanchir les matières kératiniques, notamment la peau du visage et/ou du corps, et/ou pour prévenir, réduire et/ou traiter une altération du teint de la peau ou de la teinte des semi-muqueuses. The present invention also relates to the cosmetic use of at least one lemon savory hydrolate, in particular Satureja montana ssp. variegata or citrio dora, as an active ingredient for depigmenting, lightening and / or whitening keratinous substances, especially the skin of the face and / or the body, and / or for preventing, reducing and / or treating an alteration of the complexion of the skin. skin or shade of semi-mucous membranes.

Les inventeurs ont en effet démontré que l’hydrolat de Sarriette Citronnée ( Satureja mon tana ssp. variegata ou citriodora,) précité tel que défini dans la présente invention pré- sente une activité dépigmentante, éclaircissante voire blanchissante des matières kéra- tiniques, notamment de la peau. Plus particulièrement, il a été montré, comme détaillé dans la partie expérimentale ci-après, que ces hydrolats de Sarriette Citronnée, en par- WcuUerSatureja montana ssp. variegata ou citriodora, réduisent la synthèse de la méla- nine. La présente invention vise également à protéger un procédé de traitement cosmétique non thérapeutique de dépigmentation, d’éclaircissement et/ou de blanchiment des ma- tières kératiniques, notamment de la peau du visage et/ou du corps et/ou de prévention, de réduction et/ou de traitement d’une altération du teint de la peau ou de la teinte des semi-muqueuses comprenant au moins une étape consistant à appliquer sur lesdites matières kératiniques et en particulier la peau du visage et/ou du corps au moins une composition comprenant au moins un hydrolat de Sarriette Citronnée, en particulier Sa- tureja montana ssp. variegata ou citriodora, tels que définis dans la présente invention. The inventors have in fact demonstrated that the aforementioned sulfuric acid hydrolate (Satureja monana ssp, variegata or citriodora) as defined in the present invention exhibits a depigmenting, lightening or even whitening activity of the keratinic materials, in particular the skin. More particularly, it has been shown, as detailed in the experimental section below, that these hydrolates of Lemon Savory, in particular WcuUerSatureja montana ssp. variegata or citriodora, reduce the synthesis of melanin. The present invention also aims at protecting a non-therapeutic cosmetic treatment process for depigmentation, lightening and / or bleaching of keratin materials, in particular of the skin of the face and / or of the body and / or of prevention, reduction and / or treatment of an alteration of the skin tone or the shade of the semi-mucous membranes comprising at least one step of applying to said keratin materials and in particular the skin of the face and / or the body at least one composition comprising at least one lemon savory hydrosol, in particular Saureja montana ssp. variegata or citriodora, as defined in the present invention.

Hydrolat hydrolat

Un hydrolat est un produit généralement très dilué, obtenu à partir d’une ma- tière première végétale botaniquement définie, par entraînement à la vapeur d’eau. L’hy- drolat (phase aqueuse) est le plus souvent séparé de l’huile essentielle par un procédé physique n’entraînant pas de changement significatif de la composition.  A hydrolate is a generally very dilute product, obtained from a botanically defined raw material, by steam distillation. The hydrolate (aqueous phase) is most often separated from the essential oil by a physical process that does not cause a significant change in the composition.

L’hydrolat conforme à l’invention peut être préparé de préférence selon la technique classique de l’entraînement à la vapeur d’eau.  The hydrosol according to the invention can be prepared preferably according to the conventional technique of steam distillation.

L’entrainement à la vapeur correspond à la vaporisation en présence de va- peur d’eau d’une substance peu miscible à l’eau. La matière première est mise en pré- sence de vapeur d’eau dans un alambic. La vapeur d’eau entraîne la vapeur d’huile essentielle qui est condensée dans le réfrigérant pour être récupérée en phase liquide dans un vase florentin (ou essencier) où l’huile essentielle est séparée de l’eau par dé- cantation. On appelle « eau aromatique » ou « hydrolat » ou « eau florale » voire « eau distillée florale », le distillât aqueux qui subsiste une fois la séparation de l’huile essen- tielle effectuée, généralement à l’entraînement à la vapeur d’eau.  Steam training corresponds to the vaporization in the presence of water vapor of a substance that is not very miscible with water. The raw material is put in the presence of water vapor in a still. Water vapor causes the essential oil vapor which is condensed in the refrigerant to be recovered in the liquid phase in a florentine (or essencier) vase where the essential oil is separated from the water by decomposition. The term "aromatic water" or "hydrolat" or "floral water", or "floral distilled water", means the aqueous distillate which remains after the separation of the essential oil has been carried out, generally at steam distillation. water.

L'hydrolat peut être obtenu à partir d'un végétal en entier, de préférence une plante, un arbuste ou une fleur, ou d'une partie de ce végétal choisie parmi les fleurs, feuilles, tiges, graines, fruits, racines, pétales, bourgeons, écorces, qui peuvent être à divers états de siccité (forme sèche, flétrie, fraîche), et leurs mélanges. The hydrosol can be obtained from a whole plant, preferably a plant, a shrub or a flower, or a part of this plant selected from flowers, leaves, stems, seeds, fruits, roots, petals , buds, barks, which may be at various states of dryness (dry, withered, fresh form), and mixtures thereof.

Selon l’invention, l’hydrolat de Sarriette Citronnée, plante caractéristique du Vercors et des Alpes, ( Satureja montana L. ssp. Citriodora) en particulier Satureja mon- tana ssp. variegata ou citriodora est préférentiellement obtenu après distillation à la va- peur des parties aériennes fleuries de la plante, généralement à un ratio biomasse / hydrolat de 1/1 et sans cohobation, pendant environ une durée variant de 30 mn à 8 heures, de préférence entre 1 et 4 heures, plus particulièrement entre 1 et 2 heures tel que 1 h30 min.  According to the invention, the Lemon Savory hydrolate, a characteristic plant of the Vercors and the Alps, (Satureja montana L. ssp Citriodora) in particular Satureja montana ssp. variegata or citriodora is preferentially obtained after steam distillation of the flowering aerial parts of the plant, generally at a biomass / hydrolate ratio of 1: 1 and without cohesion, for approximately a period ranging from 30 minutes to 8 hours, preferably between 1 and 4 hours, more particularly between 1 and 2 hours such as 1 h30 min.

L’hydrolat de sarriette citronnée est un liquide hydrosoluble, incolore, avec une odeur fraîche, aromatique, légèrement herbacée et une note citronnée, contenant une grande quantité d’eau telle que supérieure à 90%, en particulier supérieure à 95%, plus particulièrement supérieure à 98%. Le principal composant organique de l’hydrolat est le géraniol, qui est pré- sent dans une teneur d’au moins 0.03 % en poids total du dit hydrolat, en particulier d’environ 0.05% en poids, par exemple dans une teneur comprise entre 0.04 % et 0.06%. Lemon savory hydrosol is a water-soluble, colorless liquid with a fresh, aromatic, slightly herbaceous odor and a lemony note, containing a large quantity of water such as greater than 90%, in particular greater than 95%, more particularly greater than 98%. The main organic component of the hydrolate is geraniol, which is present in a content of at least 0.03% by total weight of said hydrolyzate, in particular of about 0.05% by weight, for example in a content between 0.04% and 0.06%.

Outre le géraniol, les autres composants organiques principaux de l’hydrolat de Sarriette Citronnée, selon l’invention, sont généralement le nérol, le citral et l’octene- 1-OI-3.  In addition to geraniol, the other main organic components of the lemon savory hydrolate according to the invention are generally nerol, citral and octene-1-OI-3.

Un autre objet de l’invention est un hydrolat de Sarriette Citronnée, en parti- culier Satureja montana ssp. variegata ou citriodora, et notamment un hydrolat tel qu’ob- tenu dans l’exemple 1. Another object of the invention is a lemon savory hydrolate, in particular Satureja montana ssp. variegata or citriodora, and especially a hydrolate as obtained in Example 1.

Les teneurs indiquées ici sont données par rapport au poids total de l’hydro- lat considéré. The contents given here are given in relation to the total weight of the hydrogen under consideration.

La phase aqueuse (eau et éventuellement le solvant miscible à l'eau) peut être présente dans la composition en une teneur allant de 0,1 % à 99,9 % en poids, par rapport au poids total de la composition, par exemple allant de 40 % à 95 % en poids  The aqueous phase (water and optionally the solvent miscible with water) may be present in the composition in a content ranging from 0.1% to 99.9% by weight, relative to the total weight of the composition, for example ranging from from 40% to 95% by weight

Compositions Un autre objet de l’invention est une composition, notamment cosmétique ou dermato- logique, contenant au moins un hydrolat de Sarriette Citronnée ( Satureja montana ssp. variegata ou citriodora), en particulier Satureja montana ssp. variegata ou citriodora. Compositions Another object of the invention is a composition, in particular a cosmetic or dermatological composition, containing at least one lemony savory hydrolate (Satureja montana ssp variegata or citriodora), in particular Satureja montana ssp. variegata or citriodora.

Dans un mode particulier de l’invention la composition comprend au moin sun hydrolat de sarriette citronnée et au moins une huile essentielle, en particlier au moins une huile essentielle de Sarriette citronnée ( Satureja montana L. ssp. Citriodora). In a particular embodiment of the invention, the composition comprises at least one sun lemon savory hydrolate and at least one essential oil, in particular at least one essential oil of lemon savory (Satureja montana L. ssp Citriodora).

La composition selon l’invention comprend au moins un hydrolat de sarriette Citronnée. Lorsque le dit hydrolat est mis en oeuvre dans une composition, notamment cosmétique ou dermatologique, cet hydrolat peut former une partie substantielle, majoritaire ou mi- noritaire de la dite composition. The composition according to the invention comprises at least one lettuce savory hydrosol. When said hydrolate is used in a composition, in particular a cosmetic or dermatological composition, this hydrolate may form a substantial, majority or minor part of said composition.

Ainsi, selon certains modes de réalisation, la dite composition peut comprendre moins de 50% en poids du dit hydrolat, par rapport au poids total de cette composition. Par exemple, la dite composition peut comprendre moins de 40% en poids du dit hydrolat, notamment moins de 30% en poids du dit hydrolat, moins de 20% en poids du dit hydro- lat, moins de 10% en poids du dit hydrolat, ou encore moins de 1 % en poids du dit hydrolat.  Thus, according to some embodiments, said composition may comprise less than 50% by weight of said hydrolate, relative to the total weight of this composition. For example, said composition may comprise less than 40% by weight of said hydrosol, in particular less than 30% by weight of said hydrosol, less than 20% by weight of said hydrolat, less than 10% by weight of said hydrosol , or even less than 1% by weight of said hydrosol.

Par exemple, cette composition peut comprendre moins de 10% en poids du dit hydrolat, par exemple moins de 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2% 1 %, 0.9%, 0.8%, 0.7%, 0.6%, 0.5%, 0.4%, 0.3%, 0.2% ou encore moins de 0.1 %, en poids du dit hydrolat par rapport au poids total de la composition. For example, this composition may comprise less than 10% by weight of said hydrosol, for example less than 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2% 1%, 0.9%, 0.8%, 0.7%, 0.6%, 0.5%, 0.4%, 0.3%, 0.2% or even less than 0.1%, by weight of said hydrolate relative to the total weight of the composition.

Alternativement, ladite composition peut comprendre aux moins 10% en poids dudit hy- drolat par rapport au poids total de la composition.  Alternatively, said composition may comprise at least 10% by weight of said hydrolate relative to the total weight of the composition.

Ainsi selon d’autres modes de réalisation, la dite composition peut comprendre 30% ou plus de 30% en poids du dit hydrolat, soit par exemple 31 , 32, 33, 34, 35, 36, 37, 38, 39, 40, 41 , 42, 43, 44, 45, 46, 47, 48, 49, ou plus de 50% en poids, par rapport au poids total de la composition. Par exemple, cette composition peut comprendre plus de 60% en poids du dit hydrolat par rapport au poids total de la composition, ce qui inclut plus de 70%, plus de 80%, voire plus de 90% en poids du poids total de la composition.  Thus according to other embodiments, said composition may comprise 30% or more than 30% by weight of said hydrolate, for example 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, or more than 50% by weight, based on the total weight of the composition. For example, this composition may comprise more than 60% by weight of said hydrolate relative to the total weight of the composition, which includes more than 70%, more than 80%, even more than 90% by weight of the total weight of the composition. composition.

Selon une forme particulière de l’invention, cet hydrolat est de préférence mis en oeuvre dans une teneur d’au moins 30% en poids, par rapport au poids total de la composition. Selon un mode particulier, une composition cosmétique ou dermatologique selon l’in vention, peut être caractérisée en ce qu’elle contient au moins 30% en poids d’hydrolat de Sarriette Citronnée, en particulier Satureja montana ssp. variegata ou citriodora ; no- tamment au moins 40% en poids d’hydrolat de Sarriette Citronnée ; notamment au moins 50% en poids d’hydrolat de Sarriette Citronnée .  According to one particular form of the invention, this hydrosol is preferably used in a content of at least 30% by weight, relative to the total weight of the composition. According to one particular embodiment, a cosmetic or dermatological composition according to the invention may be characterized in that it contains at least 30% by weight of lemon savory hydrolate, in particular Satureja montana ssp. variegata or citriodora; especially at least 40% by weight of Lemon Savory Hydrolyzate; especially at least 50% by weight of Lemon Savory Hydrolyzate.

Selon un mode particulier, une composition selon l’invention, peut être caractérisée en ce que l’hydrolat, ou une compostion comprenant ledit hydrolat, comprend du géraniol. En particulier, la composition comprenant ledit hydrolat, peut contenirau moins 0,003% en poids de géraniol par rapport au poids total de la composition.  According to one particular embodiment, a composition according to the invention may be characterized in that the hydrolate, or a composition comprising said hydrolate, comprises geraniol. In particular, the composition comprising said hydrolate may contain at least 0.003% by weight of geraniol relative to the total weight of the composition.

Par exemple, lorsque la dite composition contient au moins 10% en poids d’hydrolat de Sarriette Citronnée, cette composition peut comprendre au moins 0.003% en poids de géraniol par rapport au poids total de la composition.  For example, when said composition contains at least 10% by weight of Lemon Savory hydrolate, this composition may comprise at least 0.003% by weight of geraniol relative to the total weight of the composition.

Selon un mode particulier, une composition selon l’invention, peut être caractérisée en ce que l’hydrolat, ou une compostion comprenant ledit hydrolat, comprend du nérol, du citral et/ou de l’octene-1 -ol-3.  According to one particular embodiment, a composition according to the invention may be characterized in that the hydrolate, or a composition comprising said hydrolate, comprises nerol, citral and / or octene-1-ol-3.

Par exemple, une composition selon l’invention peut être caractérisée en ce qu’elle com- prend du géraniol, du nérol du citral et de l’octene-1 -ol-3.  For example, a composition according to the invention may be characterized in that it comprises geraniol, nerol of citral and octene-1-ol-3.

Ainsi une composition selon l’invention peut être caractérisée en ce qu’elle comprend :  Thus a composition according to the invention can be characterized in that it comprises:

- au moins 0,003% en poids de géraniol  - at least 0.003% by weight of geraniol

- au moins 0,0001 % en poids de nérol, citral et octene-1 -ol-3.  at least 0.0001% by weight of nerol, citral and octene-1-ol-3.

En particulier, une composition selon l’invention peut être caractérisée en ce qu’elle com- prend :  In particular, a composition according to the invention can be characterized in that it comprises:

- au moins 0,003% en poids de géraniol  - at least 0.003% by weight of geraniol

- au moins 0,0001 % en poids de nérol  at least 0.0001% by weight of nerol

- au moins 0,0001 % en poids de citral  - not less than 0.0001% by weight of citral

- au moins 0,0001 % en poids d’octene-1 -ol-3. Les compositions selon l’invention peuvent, le cas échéant, comprendre un mélange d’huiles essentielles et d’hydrolats. at least 0.0001% by weight of octene-1-ol-3. The compositions according to the invention may, if appropriate, comprise a mixture of essential oils and hydrosols.

Par exemple, une composition selon l’invention peut comprendre une huile essentielle de Sarriette Citronnée en excès volumique par rapport à l’hydrolat. Inversement, le dit hydrolat peut être en excès volumique par rapport à l’huile essentielle.  For example, a composition according to the invention may comprise an essential oil of Lemon Savry in excess of volume relative to the hydrosol. Conversely, said hydrolate may be in excess of volume relative to the essential oil.

En outre, les compositions selon l’invention peuvent, le cas échéant, comprendre des huiles essentielles ou hydrolats autres que ceux obtenus à partir de Sarriette Citronnée. Les compositions notamment cosmétiques susceptibles d'être utilisées dans le cadre de l'invention comprennent généralement un milieu physiologiquement acceptable, de pré- férence un milieu cosmétiquement acceptable.  In addition, the compositions according to the invention may, if appropriate, comprise essential oils or hydrolates other than those obtained from Lemon Savory. Particularly cosmetic compositions that may be used in the context of the invention generally comprise a physiologically acceptable medium, preferably a cosmetically acceptable medium.

Les compositions selon l'invention peuvent se présenter sous toutes les formes galé- niques classiquement utilisées pour une application topique et notamment sous forme de solutions aqueuses, hydroalcooliques, d'émulsions huile-dans-eau (H/E) ou eau- dans-huile (E/H) ou multiple (triple : E/H/E ou H/E/H), de gels aqueux, ou de dispersions d'une phase grasse dans une phase aqueuse à l'aide de sphérules, ces sphérules pou- vant être des vésicules lipidiques de type ionique et/ou non ionique (liposomes, nio- somes, oléosomes). Ces compositions sont préparées selon les méthodes usuelles. The compositions according to the invention may be in any of the galenical forms conventionally used for topical application and especially in the form of aqueous, hydroalcoholic solutions, oil-in-water (O / W) or water-in-water emulsions. oil (E / H) or multiple (triple: E / H / E or H / E / H), aqueous gels, or dispersions of a fatty phase in an aqueous phase using spherules, these spherules for - Be lipid vesicles of ionic and / or nonionic type (liposomes, niosomes, oleosomes). These compositions are prepared according to the usual methods.

Les compositions selon l'invention peuvent se présenter également sous forme anhydre, comme par exemple sous forme d'une huile. On entend par « composition anhydre » une composition contenant moins de 1% en poids d'eau, voire moins de 0,5 % d'eau, et notamment exempte d'eau, l'eau n'étant pas ajoutée lors de la préparation de la compo- sition mais correspondant à l'eau résiduelle apportée par les ingrédients mélangés. The compositions according to the invention may also be in anhydrous form, for example in the form of an oil. The term "anhydrous composition" means a composition containing less than 1% by weight of water, or even less than 0.5% of water, and especially free of water, the water not being added during the preparation of the composition but corresponding to the residual water provided by the mixed ingredients.

Au sens de la présente invention, on entend par « prévenir » ou par « prévention » le fait de diminuer, au moins en partie, le risque de survenue d’un phénomène donné, i.e. dans la présente invention une altération du teint de la peau ou de la teinte des semi-mu- queuses. Au sens de la présente invention, on entend par matières kératiniques notamment la peau For the purposes of the present invention, the term "prevent" or "prevention" means to reduce, at least in part, the risk of occurrence of a given phenomenon, ie in the present invention an alteration of the complexion of the skin or shade of semi-mucous. For the purposes of the present invention, the term "keratin materials" in particular means skin

Par « peau » on entend l’ensemble de la peau du corps, incluant le cuir chevelu, les muqueuses et les semi-muqueuses. . Plus particulièrement, on considère dans la présente invention la peau du dé- colleté, du cou et du visage, les mains, les aisselles et en particulier la peau du visage. Selon un autre mode particulier de l’invention, la composition est destinée à l’adminis- tration topique sur les matières kératiniques telles que la peau. By "skin" is meant all of the skin of the body, including the scalp, mucous membranes and semi-mucous membranes. . More particularly, in the present invention, the skin of the neck, neck and face, the hands, the armpits and in particular the skin of the face are considered. According to another particular embodiment of the invention, the composition is intended for topical administration to keratin materials such as the skin.

Le dit hydrolat (ou la dite composition comprenant le dit hydrolat) peut être mis en oeuvre, dans le cadre d’une utilisation ou d’un procédé selon l’invention, par voie to- pique. Ainsi, selon un mode particulier de réalisation, l’invention concerne une utisation ou un procédé dans lesquels dit hydrolat ou la dite composition sont administrables par voie topique. The said hydrolate (or the said composition comprising the said hydrolate) may be used, in the context of a use or a method according to the invention, by the tic route. Thus, according to a particular embodiment, the invention relates to a user or a method in which said hydrolate or said composition is administrable topically.

Selon un mode particulier de réalisation, l’invention concerne donc aussi un hydrolat de Sarriette Citronnée, en particulier Satureja montana ssp. variegata ou citriodora, (ou une composition comprenant le dit hydrolat) destiné à être administré par voie topique Selon un mode préféré de réalisation, le dit hydrolat (ou la dite composition comprenant le dit hydrolat) est mis en oeuvre par voie topique.  According to a particular embodiment, the invention therefore also relates to a Lemon savory hydrosol, in particular Satureja montana ssp. variegata or citriodora, (or a composition comprising said hydrolate) intended to be administered topically According to a preferred embodiment, said hydrolate (or said composition comprising said hydrolate) is implemented topically.

Par « voie topique » on entend une application en surface de la peau considérée.  By "topical route" is meant an application on the surface of the skin in question.

L'application d’une composition comprenant le dit hydrolat peut être suivie ou non d'une étape de rinçage à l'eau. The application of a composition comprising the said hydrosol may or may not be followed by a rinsing step with water.

Selon un mode de réalisation, l'application est répétée par exemple 1 à 3 fois quotidien- nement sur une journée ou plusieurs jours, de préférence 1 à 2 fois par jour, et particu- lièrement sur une durée prolongée d'au moins 4, voire 4 à 15 semaines, avec le cas échéant une ou plusieurs périodes d'interruption.  According to one embodiment, the application is repeated for example 1 to 3 times daily over a day or several days, preferably 1 to 2 times per day, and particularly over a prolonged period of at least 4, even 4 to 15 weeks, with one or more periods of interruption if necessary.

Les compositions selon l'invention pourront être appliquées directement sur la peau ou, de façon alternative, sur des supports cosmétiques de type occlusif ou non occlusif, des- tinés à être appliqués de façon localisée sur la peau. A titre d'exemples de supports cosmétiques, non limitatifs, on peut notamment citer un patch, une lingette, un roll-on et un stylo. The compositions according to the invention may be applied directly to the skin or, alternatively, to occlusive or non-occlusive type cosmetic supports intended to be applied in a localized manner to the skin. As examples of non-limiting cosmetic media, there may be mentioned a patch, a wipe, a roll-on and a pen.

La composition selon la présente invention comprendra selon un mode de réalisation particulier, outre un hydrolat de Sarriette Citronnée, en particulier Satureja montana ssp. variegata ou citriodora, tel que définie plus haut, au moins un actif additionnel pour le soin des peaux, telles que les peaux âgées, les peaux ternes, les peaux grasses ou à tendance grasse.  The composition according to the present invention will comprise according to a particular embodiment, in addition to a Lemon savory hydrosol, in particular Satureja montana ssp. variegata or citriodora, as defined above, at least one additional asset for the care of the skin, such as aged skin, dull skin, oily or oily skin.

La composition peut être rincée ou non après avoir été appliquée sur la peau. Par ail- leurs, après l'application de la composition selon l'invention, on peut appliquer sur la surface de la peau, une composition comprenant un ou plusieurs actifs choisis parmi les antibactériens, les antifongiques et/ou des poudres.  The composition may be rinsed or not after being applied to the skin. Moreover, after application of the composition according to the invention, it is possible to apply to the surface of the skin a composition comprising one or more active agents chosen from antibacterials, antifungals and / or powders.

Selon un mode particulier de l'invention, on pourra encore ajouter dans la composition convenant à l'invention d'autres agents destinés à embellir l'aspect et/ou la texture de la peau.  According to a particular embodiment of the invention, it is also possible to add other agents to the appearance and / or the texture of the skin in the composition that is suitable for the invention.

Par l'expression « actif additionnel de soin de la peau», on entend, dans le cadre de la présente invention, un composé qui a par lui-même, c'est-à-dire ne nécessitant pas l'intervention d'un agent extérieur pour l'activer, présente une activité biologique béné- fique pour la peau. By the term "additional skin care active ingredient" is meant, in the context of the present invention, a compound which has by itself, that is to say not requiring the intervention of an external agent to activate it, has a beneficial biological activity for the skin.

La composition comprend en outre un milieu physiologiquement acceptable, qui est pré- férentiellement un milieu cosmétiquement ou pharmaceutiquement, notamment derma- tologiquement, acceptable, c'est-à-dire sans odeur, couleur ou aspect désagréable, et qui ne génère pas de picotement, tiraillement inacceptable pour l’utilisateur. En particu- lier la composition est adaptée à une application topique sur la peau et les annexes.The composition further comprises a physiologically acceptable medium, which is preferably a cosmetically or pharmaceutically, including dermatologically acceptable medium, that is to say without odor, color or unpleasant appearance, and which does not generate tingling. , tugging unacceptable to the user. In particular, the composition is adapted for topical application to the skin and appendages.

Par milieu physiologiquement acceptable, on comprend un milieu compatible avec la peau d’êtres humains et les annexes. By physiologically acceptable medium, an environment compatible with human skin and appendages is understood.

La composition selon l'invention peut alors comprendre de l’eau et/ou tous les adjuvants usuellement employés dans le domaine d'application envisagée.  The composition according to the invention may then comprise water and / or all the adjuvants usually employed in the intended field of application.

On peut notamment citer; les solvants organiques, notamment les alcools en C1 -C6 et les esters d'acide carboxylique en C2-C10; les huiles carbonées et/ou siliconées, d'origine minérale, animale et/ou végétale; l’eau, les cires, les pigments, les charges, les colo- rants, les tensioactifs, les émulsionnants, les co-émulsionnants; les actifs cosmétiques ou dermatologiques, les filtres UV, les polymères, les gélifiants hydrophiles ou lipophiles, les épaississants, les conservateurs, les parfums, les bactéricides, les absorbeurs d’odeur, les antioxydants.  One can quote in particular; organic solvents, especially C 1 -C 6 alcohols and C 2 -C 10 carboxylic acid esters; carbonaceous and / or silicone oils, of mineral, animal and / or vegetable origin; water, waxes, pigments, fillers, dyes, surfactants, emulsifiers, co-emulsifiers; cosmetic or dermatological active agents, UV filters, polymers, hydrophilic or lipophilic gelling agents, thickeners, preservatives, perfumes, bactericides, odor absorbers, antioxidants.

Ces éventuels adjuvants peuvent être présents dans la composition à raison de 0,001 à 80% en poids, notamment 0,1 à 40% en poids, par rapport au poids total de la compo- sition.  These optional adjuvants may be present in the composition in a proportion of 0.001 to 80% by weight, especially 0.1 to 40% by weight, relative to the total weight of the composition.

Selon des modes de réalisation particuliers, les compositions selon l’invention peuvent comprendre au moins 5% en poids d’hydrolat de Sarriette citronnée par rapport au poids total de la composition, et un milieu physiologiquement acceptable.  According to particular embodiments, the compositions according to the invention may comprise at least 5% by weight of lemon savory hydrolate relative to the total weight of the composition, and a physiologically acceptable medium.

Par exemple, les compositions selon l’invention peuvent comprendre au moins 5% en poids d’hydrolat de Sarriette citronnée par rapport au poids total de la composition, au moins un adjuvant, tels que ceux décridt plus haut, et un milieu physiologiquement ac- ceptable.  For example, the compositions according to the invention may comprise at least 5% by weight of lemon savory hydrolate relative to the total weight of the composition, at least one adjuvant, such as those described above, and a physiologically acceptable medium. ceptable.

En particulier, les compositions selon l’invention peuvent comprendre au moins 10% en poids d’hydrolat de Sarriette citronnée par rapport au poids total de la composition, et un milieu physiologiquement acceptable.  In particular, the compositions according to the invention may comprise at least 10% by weight of lemon savory hydrolate relative to the total weight of the composition, and a physiologically acceptable medium.

Par exemple, les compositions selon l’invention peuvent comprendre au moins 10% en poids d’hydrolat de Sarriette citronnée par rapport au poids total de la composition, au moins un adjuvant, tels que ceux décridt plus haut, et un milieu physiologiquement ac- ceptable.  For example, the compositions according to the invention may comprise at least 10% by weight of lemon savory hydrolate relative to the total weight of the composition, at least one adjuvant, such as those described above, and a physiologically acceptable medium. ceptable.

Selon un mode de réalisation particulier, les compositions selon l’invention peuvent com- prendre au moins 30% en poids d’hydrolat de Sarriette citronnée par rapport au poids total de la composition, et un milieu physiologiquement acceptable. Par exemple, les compositions selon l’invention peuvent comprendre au moins 30% en poids d’hydrolat de Sarriette citronnée par rapport au poids total de la composition, au moins un adjuvant, tels que ceux décridt plus haut, et un milieu physiologiquement ac- ceptable. According to a particular embodiment, the compositions according to the invention may comprise at least 30% by weight of lemon savory hydrolate relative to the total weight of the composition, and a physiologically acceptable medium. For example, the compositions according to the invention may comprise at least 30% by weight of lemon savory hydrolate relative to the total weight of the composition, at least one adjuvant, such as those described above, and a physiologically acceptable medium. ceptable.

La composition selon l'invention peut constituer une composition de maquillage, ou pré- férentiellement de soin de la peau, et notamment une crème de nettoyage, de protection, de traitement ou de soin pour le visage, pour les mains, pour les pieds, pour les grands plis anatomiques ou pour le corps (par exemple crèmes de jour, crèmes de nuit, crèmes démaquillantes, crèmes de fond de teint, crèmes anti-solaires); un fond de teint fluide, un lait de démaquillage, un lait corporel de protection ou de soin, un lait anti-solaire; une lotion, gel ou mousse pour le soin de la peau, comme une lotion de nettoyage, un com- position capillaire. The composition according to the invention may constitute a make-up composition, or preferably a skincare composition, and in particular a cream for cleaning, protecting, treating or caring for the face, for the hands, for the feet, for large anatomical folds or for the body (for example, day creams, night creams, make-up removing creams, foundation creams, sunscreen creams); a fluid foundation, a make-up removal milk, a body care or protection milk, an anti-sun milk; a lotion, gel or mousse for the care of the skin, such as a cleaning lotion, a hair composition.

L'invention est illustrée plus en détail par les exemples non limitatifs suivants. EXEMPLES The invention is further illustrated by the following non-limiting examples. EXAMPLES

Example 1 : Obtention d’un hydrolat de Sarriette citronnée Example 1: Obtaining a Lemon Savory Hydrolate

On a préparé un hydrolat de Sarriette citronnée à partir des parties aériennes de la plante au stade de pleine floraison par distillation de 5 kg en frais par entrainement de vapeur d’eau durant 1 heure 30 minutes dans un distillateur de 50 litres. Le volume d’hydrolat obtenu a été de l’ordre de 5 L. Lemur savory hydrolate was prepared from the aerial parts of the plant at the full bloom stage by distillation of 5 kg fresh by steaming for 1 hour 30 minutes in a 50 liter distiller. The volume of hydrolate obtained was of the order of 5 L.

L’hydrolat obtenu comprend comme composants majoritaires (en poids par rapport au poids total de l’hydrolat) :  The hydrolate obtained comprises as major components (by weight relative to the total weight of the hydrolate):

- Geraniol 0.05% en poids ;  Geraniol 0.05% by weight;

- Nerol 9.10-4% en poids ;  Nerol 9.10-4% by weight;

-Citral 6.10-4% en poids ;  -Citral 6.10-4% by weight;

- Octene-1 -ol-3, 6.10-4% en poids.  Octene-1-ol-3, 6.10-4% by weight.

La composition de l’hydrolat obtenu a été déterminée par chromatographie par phase gazeuse (CPG) et spectrométrie de masse. The composition of the obtained hydrolate was determined by gas chromatography (GC) and mass spectrometry.

Exemple 2 : Mise en évidence de l’effet dépigmentant d’un hydrolat de Sarriette citron- née ( Satureja montana ssp. variegata ou citriodora) convenant à l’invention EXAMPLE 2 Demonstration of the depigmenting effect of a lemon savory hydrolate (Satureja montana ssp. variegata or citriodora) that is suitable for the invention

Protocole Protocol

L’efficacité a été démontrée sur la base du test suivant : La mesure de l'activité dépigmentante (réduction de la production de mélanine) de com- posés de formule (I) a été effectuée par dosage des mélanocytes humains normaux in vitro comme suit. Efficacy has been demonstrated based on the following test: The measurement of depigmenting activity (reduction of melanin production) of compounds of formula (I) was performed by assaying normal human melanocytes in vitro as follows.

Tout d'abord, des mélanocytes humains normaux sont cultivés et distribués dans une plaque à multiples puits. Après 24 heures, le milieu de culture a été remplacé par un milieu contenant les composés de formule (I) à évaluer. Les cellules ont été incubées 72 heures avant la mesure de la densité optique finale qui mesure la quantité de mélanine produite par les mélanocytes. La mesure a été calibrée et les composés ont été testés à 100 mM.  First, normal human melanocytes are cultured and distributed in a multiwell plate. After 24 hours, the culture medium was replaced by a medium containing the compounds of formula (I) to be evaluated. The cells were incubated for 72 hours before measuring the final optical density which measures the amount of melanin produced by the melanocytes. The measurement was calibrated and the compounds were tested at 100 mM.

Différentes campagnes de tests ont été menées et les résultats sont rassemblés dans les tableaux suivants. Various test campaigns have been conducted and the results are collated in the following tables.

Ces résultats ont été comparés à ceux obtenus avec des composés décrits dans l’art antérieur, et plus particulièrement le composé geraniol décrit dans l’art antérieur.  These results were compared with those obtained with compounds described in the prior art, and more particularly the geraniol compound described in the prior art.

Résultats Results

Les résultats du test sont récapitulés dans le tableau 1 ci-dessous.  The test results are summarized in Table 1 below.

Tableau 1 Table 1

Figure imgf000012_0001
Figure imgf000012_0001

De ces résultats, il ressort que l’hydrolat de Sarriette Citronnée (Satureja montana ssp. variegata ou citriodora) à faible concentration présente des propriétés dépigmentantes (IC50 = 23.2% (inhibition production mélanine globale), IC50 = 23.7% (inhibition dopa oxydase). From these results, it appears that the lemony savory hydrolate (Satureja montana ssp. Variegata or citriodora) at low concentration has depigmenting properties (IC50 = 23.2% (global melanin production inhibition), IC50 = 23.7% (dopa oxidase inhibition). .

Composé de l’art antérieur (Géraniol à 0.05% dans eau) et (Géraniol à 0.05% dans DMSO) de l’art antérieur est non cytotoxique, mais ne montre pas d’efficacité.  Compound of the prior art (Geraniol at 0.05% in water) and (Geraniol at 0.05% in DMSO) of the prior art is non-cytotoxic, but does not show efficacy.

Exemple 3 : Expérience de coculture : Example 3: Co-cultivation experiment:

Un test biologique a mis en évidence l’activité dépigmentante d’un hydrolat de sarriette citronée ( Satureja montana ssp. variegata ou citriodora)L’effet modulateur sur la méla- nogénèse d’un hydrolat de sarriette citronée ( Satureja montana ssp. variegata ou citrio- dora)a été mesuré selon Iméthode décrite dans le brevet FR-A-2734825 , ainsi que dans l’article de R. Schmidt, A biological test revealed the depigmenting activity of a lemon savory hydrolate (Satureja montana ssp variegata or citriodora). nogenesis of a lemon savory hydrolate (Satureja montana ssp variegata or citriodora) was measured according to the method described in FR-A-2734825, as well as in the article by R. Schmidt,

P. Krien et M. Régnier, Anal. Bichem., 235(2), 1 13-18,1996. Ce test est réalisé sur co- culture de kératinocytes et de mélanocytes.  P. Krien and M. Regnier, Anal. Bichem., 235 (2), 13-18, 1996. This test is performed on co-culture of keratinocytes and melanocytes.

Pour les composés testés, il a été déterminé : For the compounds tested, it was determined:

la cytotoxicité,  cytotoxicity,

l'activité inhibitrice sur la synthèse de la mélanine, en estimant la densité optique de mélanine.  the inhibitory activity on melanin synthesis, by estimating melanin optical density.

Les valeurs des IC50, (concentration pour laquelle 50 % de la synthèse de la mélanine est inhibée) ont été déterminées.  IC50 values (concentration for which 50% of melanin synthesis is inhibited) were determined.

Résultats Results

Les résultats du test sont récapitulés dans le tableau 2 ci-dessous.  The test results are summarized in Table 2 below.

Tableau 2 Table 2

Figure imgf000013_0001
Figure imgf000013_0001

De ces résultats, il ressort que de manière surprenante l’hydrolat de Sarriette Citronnée ( Satureja montana ssp. variegata ou citriodora) présente des propriétés dépigmentantes sur le modèle de co-culture. From these results, it appears that surprisingly the Lemon Savory (Satureja montana ssp. variegata or citriodora) hydrolate has depigmenting properties on the co-culture model.

Exemple4 : Composition selon l’invention Example 4 Composition according to the invention

On prépare un gel dépigmentant pour la peau. Il comprend les ingrédients qui suivent (% en poids par rapport au poids total de la composition) : A depigmenting gel is prepared for the skin. It comprises the following ingredients (% by weight relative to the total weight of the composition):

Figure imgf000013_0002
La composition selon l’invention appliquée sur la peau permet d’homogénéiser le teint, notamment d’estomper les taches brunes. Exemple 5 : Composition selon l’invention
Figure imgf000013_0002
The composition according to the invention applied to the skin makes it possible to homogenize the complexion, in particular to fade brown spots. Example 5 Composition according to the invention

On prépare une crème dépigmentante pour la peau notamment du visage. Il comprend les ingrédients qui suivent (% en poids par rapport au poids total de la composition) A depigmenting cream is prepared for the skin, especially the face. It comprises the following ingredients (% by weight relative to the total weight of the composition)

Figure imgf000014_0001
Figure imgf000014_0001

Claims

REVENDICATIONS 1. Procédé de traitement des matières kératiniques non thérapeutique, pour dépigmen- ter, éclaircir et/ou blanchir les matières kératiniques, notamment la peau du visage et/ou du corps, et/ou pour prévenir, réduire et/ou traiter une altération du teint de la peau ou de la teinte des semi-muqueuses mettant en oeuvre au moins un hydrolat de Sarriette Citronnée, en particulier Satureja montana L. ssp. citriodora, ou une composition cos- métique comprenant au moins un hydrolat de Sarriette Citronnée, en particulier Satureja montana L. ssp. citriodora. 1. A method of treating non-therapeutic keratin materials for depigmenting, lightening and / or bleaching keratin materials, especially the skin of the face and / or the body, and / or for preventing, reducing and / or treating an alteration of the dyed skin or shade of semi-mucous membranes using at least one Lemon savory hydrosol, in particular Satureja montana L. ssp. citriodora, or a cosmetical composition comprising at least one Lemon Savory hydrosol, in particular Satureja montana L. ssp. citriodora. 2. Procédé selon la revendication précédente dans lequel ledit hydrolat est un hydrolat de Satureja montana ssp. variegata ou citriodora. 2. Method according to the preceding claim wherein said hydrosol is a hydrosol of Satureja montana ssp. variegata or citriodora. 3. Procédé selon l’une quelconque des revendications 1 ou 2 dans lequel ledit hydrolat est un hydrolat de Sarriette Citronnée, en particulier Satureja montana ssp. variegata ou citriodora, comprenant au moins 0.03% en poids de géraniol. 3. Process according to any one of claims 1 or 2 wherein said hydrolate is a lemon savory hydrolate, in particular Satureja montana ssp. variegata or citriodora, comprising at least 0.03% by weight of geraniol. 4. Procédé selon l’une quelconque des revendications 1 , 2 ou 3 dans lequel que l’hy- drolat comprend du nérol, du citral et de l’octene-1-ol-3. 4. A process according to any one of claims 1, 2 or 3 wherein the hydrolate comprises nerol, citral and octene-1-ol-3. 5. Procédé selon une quelconque des revendications précédentes dans lequel ledit hy- drolat est obtenu par un procédé d’entraînement à la vapeur d’eau. 5. A process according to any one of the preceding claims wherein said hydrolate is obtained by a steam stripping process. 6. Composition comprenant, dans un milieu physiologiquement acceptable, au moins un hydrolat de Sarriette Citronnée, en particulier Satureja montana ssp. variegata ou citrio dora, tel que défini dans une quelconque des revendications 1 à 5 6. Composition comprising, in a physiologically acceptable medium, at least one lemon savory hydrosol, in particular Satureja montana ssp. variegata or citrio dora, as defined in any one of claims 1 to 5 7. Procédé de traitement cosmétique selon l’une quelconque des revendications 1 à 5 non thérapeutique de dépigmentation, d’éclaircissement et/ou de blanchiment des ma- tières kératiniques, notamment de la peau du visage et/ou du corps, et/ou de prévention, de réduction et/ou de traitement d’une altération du teint de la peau ou de la teinte des semi-muqueuses comprenant au moins une étape consistant à appliquer sur la peau, notamment du visage et/ou du corps au moins une composition comprenant au moins hydrolat de Sarriette Citronnée en particulier Satureja montana ssp. variegata ou citrio- dora, tel que défini selon l’une quelconque des revendications 1 à 5. 7. Cosmetic treatment method according to any one of claims 1 to 5, non-therapeutic depigmentation, lightening and / or bleaching of keratin materials, in particular of the skin of the face and / or of the body, and / or for preventing, reducing and / or treating an alteration of the skin tone or tint of semi-mucous membranes comprising at least one step of applying to the skin, in particular the face and / or the body at least one composition comprising at least hydrolate of Lemon savory in particular Satureja montana ssp. variegata or citriodora, as defined in any one of claims 1 to 5. 8. Utilisation cosmétique non thérapeutique, d’au moins un hydrolat de Sarriette Citron- née en particulier Satureja montana ssp. variegata ou citriodora, tel que défini dans une quelconque des revendications 1 à 5, comme agent blanchissant, éclaircissant et/ou dépigmentant des matières kératiniques, en particulier de la peau. 8. Non-therapeutic cosmetic use of at least one Lemon Savory hydrolate in particular Satureja montana ssp. variegata or citriodora, as defined in any one of claims 1 to 5, as whitening, lightening and / or depigmenting agent of keratinous substances, in particular of the skin.
PCT/EP2019/054491 2018-02-23 2019-02-22 Method for treating keratin materials using lemon savoury hydrosol, and cosmetic composition containing same Ceased WO2019162470A1 (en)

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