WO2009024671A2 - Composition cosmetique ayant des proprietes anti-radicalaires et procede d'application correspondant - Google Patents
Composition cosmetique ayant des proprietes anti-radicalaires et procede d'application correspondant Download PDFInfo
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- WO2009024671A2 WO2009024671A2 PCT/FR2008/000949 FR2008000949W WO2009024671A2 WO 2009024671 A2 WO2009024671 A2 WO 2009024671A2 FR 2008000949 W FR2008000949 W FR 2008000949W WO 2009024671 A2 WO2009024671 A2 WO 2009024671A2
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- cosmetic composition
- composition according
- natural origin
- plant extract
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/96—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
- A61K8/97—Cosmetics 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
- A61K8/9783—Angiosperms [Magnoliophyta]
- A61K8/9789—Magnoliopsida [dicotyledons]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
- A61Q1/02—Preparations containing skin colorants, e.g. pigments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
- A61Q1/02—Preparations containing skin colorants, e.g. pigments
- A61Q1/04—Preparations containing skin colorants, e.g. pigments for lips
- A61Q1/06—Lipsticks
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
- A61Q1/02—Preparations containing skin colorants, e.g. pigments
- A61Q1/10—Preparations containing skin colorants, e.g. pigments for eyes, e.g. eyeliner, mascara
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/52—Stabilizers
- A61K2800/522—Antioxidants; Radical scavengers
Definitions
- the present invention relates to the general technical field of cosmetic products for topical use, used in particular on the skin, hair and nails, and may in particular be in fluid or liquid form, dough, semi-liquid or semi-pasty, gel, powder or foam.
- the present invention relates in particular to the general technical field of cosmetic products containing anti-radical substances conferring them anti-radical properties.
- the present invention relates to a cosmetic composition for topical use having anti-radical properties and comprising at least one plant extract of natural origin in a cosmetically acceptable medium.
- the present invention also relates to the use of a plant extract of natural origin in a cosmetic composition having anti-radical properties.
- the present invention finally relates to a method of applying a cosmetic composition for topical use having anti-radical properties.
- the cosmetic composition according to the invention constitutes a makeup product for the skin, the nails and the hair, having anti-radical properties.
- the parts of the human body in contact with the wider environment including the skin, hair and nails are the most sensitive to external elements that may have adverse effects.
- the skin is also particularly vulnerable to attacks by free radicals. These oxidizing molecules can be dangerous in case of excess and play an important role in skin aging.
- Free radicals generated by the normal functioning of the human body, are usually balanced with antioxidant molecules.
- the natural mechanisms of antioxidant defense of the skin involve molecules such as vitamin E, vitamin C, selenium, enzymes ... These antioxidant molecules have the main property of trapping the free radicals of the body in order to maintain the balance between free radicals and antioxidant molecules.
- Free radicals are also produced under the influence of external elements such as pollution, tobacco or UV rays.
- the density of antioxidants decreases, while the level of free radicals increases.
- the natural balance between the free radicals and the antioxidant molecules is then disturbed creating an oxidative stress. This stress makes them aggressive towards the body, particularly with respect to the fundamental elements of the skin, such as in particular keratinocytes, fibroblasts, collagen and elastin.
- the consequences of aggression of the skin by free radicals are multiple and the most common are its loss of strength and elasticity.
- compositions typically contain at least one antioxidant substance, in particular of plant origin such as an anthocyanin.
- Anthocyanin is usually incorporated in pure form or isolated form from a plant extract.
- the object of the invention is therefore to remedy the various disadvantages listed above, and to propose a novel cosmetic composition having anti-radical properties and containing at least one plant extract of natural origin that can be incorporated easily and on a large scale. in cosmetic compositions.
- Another object of the invention is to propose a novel cosmetic composition capable of proposing a particularly simple and effective anti-radical action.
- Another object of the invention is to provide a new cosmetic composition incorporating natural compounds from plants widely present in the natural state and readily available.
- Another object of the invention is to propose a new cosmetic composition offering a wide range of incorporation of substances with anti-radical properties.
- Another object of the invention is to propose a new cosmetic composition having a broad spectrum of application and use in the field of cosmetics.
- Another object of the invention is to propose a new use of a plant extract of natural origin in a cosmetic composition for topical use.
- Another object of the invention is to propose a new process for applying a cosmetic composition for topical use having anti-radical properties.
- the objects assigned to the invention are attained by means of a cosmetic composition for topical use having anti-radical properties and comprising at least one plant extract of natural origin in a cosmetically acceptable medium, characterized in that said at least one a plant extract of natural origin is insoluble.
- the objects assigned to the invention are also achieved by using at least one plant extract of natural origin that is insoluble as an anti-radical agent in a cosmetic composition for topical use to confer properties anti-radical.
- the objects assigned to the invention are furthermore attained by means of a method of applying a cosmetic composition for topical use intended to protect the epidermis, the nails and the hair against free radicals, characterized in that it consists in applying to said epidermis, nails and hair a cosmetic composition as defined above.
- the invention relates to a cosmetic composition, defined according to the invention as a composition intended for cleaning, protecting, perfuming, maintaining the body in good condition, modifying the appearance and / or odor of the human body.
- a cosmetic composition can therefore be a hygiene product (toothpaste, deodorant, shower gel, soap, shampoo), a care product (anti-wrinkle cream, day cream, night cream, cream moisturizing, floral water, scrub, milk, beauty mask, lip balm, tonic), a hair product (hair conditioner, straightener, gel, oil, hairspray, mask, dye), a perfume (cologne, water perfume), a make-up product (concealer, self-tanner, eyeliner, make-up, make-up, kohl, mascara, powder, bleaching product) skin, lipstick and / or nail polish) and / or a solar product (after-sun and sun creams, oils or lotions).
- a hygiene product teethpaste, deodorant, shower gel, soap, shampoo
- a care product anti-wrinkle cream, day cream, night cream, cream moisturizing, floral water, scrub, milk, beauty mask, lip balm, tonic
- a hair product hair conditioner, straightener, gel, oil, hairs
- the invention relates to a cosmetic composition for topical use, that is to say acting at the place where it is applied namely on an outer surface of the body.
- the invention relates to a cosmetic composition defined in a cosmetically acceptable medium.
- cosmetically acceptable medium is meant a set of ingredients well known to those skilled in the art that can be mixed, while respecting the constraints of the individual use of each ingredient, the constraints related to the possible interactions between the ingredients and the ingredients. legislative constraints associated with certain ingredients (maximum incorporation dose, ). All the ingredients, commonly used in cosmetic compositions, can thus constitute a cosmetically acceptable medium within the meaning of the invention, insofar as the aforementioned constraints are respected.
- the composition of the invention has anti-radical properties.
- anti-radical in the meaning of the invention means "having an action against free radicals naturally produced by the human body".
- the anti-radical property is an antioxidant property associated with a substance or a compound.
- An antioxidant substance is capable of decreasing or preventing the oxidation of other chemicals in the body, this oxidation reaction producing free radicals that can lead to destructive chain reactions.
- Antioxidants are able to stop these chain reactions by oxidizing with free radicals and thus annihilating their action.
- the cosmetic composition makes it possible to reduce the level of free radicals by neutralizing the excess produced by the body in the event of external stress (pollution, solar radiation, stress, tobacco, alcohol, etc.).
- the present invention relates to a cosmetic composition
- a cosmetic composition comprising at least one plant extract of natural origin.
- the plant extract of natural origin is a preparation obtained by maceration of all or part of a plant in a solvent liquid and by subsequent evaporation of the solvent.
- plant extract of natural origin is meant a plant extract derived from the extraction of a plant found in nature or cultivated.
- the constituent molecules of the plant extract of natural origin are themselves of natural origin, as opposed to synthetic molecules.
- the invention relates to a cosmetic composition for topical use having anti-radical properties and comprising at least one natural plant extract in a cosmetically acceptable medium characterized in that said at least one plant extract of natural origin is insoluble.
- plant extract of insoluble natural origin is meant a plant extract of natural origin that can not be dissolved, or at least substantially dissolved, in water, in an aqueous medium or in an oily medium.
- the plant extract of the present invention is substantially insoluble in the cosmetic medium in which it is incorporated.
- said at least one plant extract of natural origin contains at least one anti-radical substance.
- said at least one plant extract of natural origin contains a substance capable of reducing the unusually high rate of free radicals following the intervention of external elements (pollution, solar radiation, stress, tobacco, alcohol, ...) to or towards its natural balance in the body.
- the anti-radical substance may be contained in a component of the composition other than the plant extract of natural origin, without departing from the scope of the invention.
- said at least one anti-radical substance described above is a polyphenol, a natural antioxidant constituting a family of organic molecules widely present in the plant kingdom.
- Polyphenols produced by the secondary metabolism of plants, are characterized by the presence of several phenolic groups, associated with more or less complex structures, high molecular weight. They are natural antioxidants divided into several sub-families which can all be incorporated, alone or in combination, into the composition according to the invention, such as: phenolic acids, flavanones, tannins and anthocyanins.
- antioxidants of origin other than polyphenols.
- This may include vitamin C, vitamin E, enzymes and / or carotenoids.
- antioxidants of animal origin also having a recognized anti-radical action.
- said at least one plant extract of natural origin is derived from the extraction of plants selected from those containing polyphenols.
- said at least one plant extract of natural origin derived from the extraction of plants containing polyphenols is preferably chosen from plant extracts containing at least one or more of the following molecules: fustine, dihydrorobinetin, brazilin, braziléine , Sulfuretin, Sulfurine (Sulfuretin 6-glucoside), Palasitrin
- polyphenolic molecules belong to different biochemical families of polyphenols including flavonoids, anthocyanins and tannins.
- flavonoids flavonoids
- anthocyanins flavonoids
- tannins tannins
- Flavonoids include neo-flavonoids, chalcones, aurones, flavanones, flavonols and flavanols.
- the general formula of flavonones is as follows:
- flavonoids there are especially fustine and dihydrorobinétine.
- Brazilin is the main molecule in the neo-flavonoid family and is oxidized to red braziléine.
- Aurones another subfamily of flavonoids, includes in particular sulfuretine, sulfurine (6-glucoside of sulfuretine) and palasitrine (3 ', 6-diglucoside of sulfuretine).
- Corseopside (4'-glucoside butine) belongs to the family of flavonoids but is part of the biochemical family of chalcones.
- R1, R2, R3, R4, R5, R6 and R7 H, OH or OCH 3.
- Apegininidine, luteolinidine, cyanidin, pelargonidin and fisetinidine are also members of the anthocyanin family and have the following formulas:
- the tannins are The tannins:
- the tannins derived from gallic acid and other polyphenolic acids, have a very variable chemical structure, but always with a polyphenolic part. Some tannins are called hydrolysable tannins and give after hydrolysis either gallic acid or ellagic acid.
- Gallic acid belongs to the family of hydrolysable tannins, in particular the family of ellagitannins. Ellagic acid and valonic acid also belong to the family of ellagitannins. Other tannins are condensed tannins. These are polymers resulting from the condensation of flavan-3-ols units and their general formula is as follows:
- R1 and R2 H or OH (catechols or gallocatechols)
- Proanthocyanidols are part of the condensed tannin family. This family includes profisetinidine.
- the cosmetic composition of the invention preferably contains at least one plant extract of natural origin derived from the extraction of dyeing plants.
- said at least one plant extract of natural origin is derived from the extraction of at least one plant selected from Cosmos, Pernambuco, Oak, Quebracho or Sorghum, containing one or more anti-cancer molecules. radicals as defined above.
- the concentration of polyphenols in these plants is higher than that conventionally found in most plants.
- the cosmos is an annual plant native to Mexico that contains flavonoids (aurones and chalcones), especially sulfuretine, sulfurine (6-glucoside sulfuretine), palasitrin (3 ', 6-diglucoside sulfuretine) and corseopside (4'-glucoside butine).
- the extract of Pernambuco used comes from a tree of the family of legumes that are found in particular in Brazil in the province of Pernambuco.
- the wood scraps are recovered for the manufacture of the extract as used in the cosmetic composition of the invention.
- the Pernambuco extract preferably contains brazilin and red braziléine.
- the Oak extract used in the cosmetic composition of the invention, is advantageously derived from the cupules of the glans.
- the cups of the species of oak used to make the extract of the invention in the composition of the invention are of the size of an apple and very rich in tannins, in particular in ellagic acid and valonic acid.
- Quebracho is a tree whose name comes from the Spanish quiebra hacha (breeze hatchet) because of the very hardness of its wood. It is found in
- the extract obtained from this tree and used in the cosmetic composition of the invention is particularly rich in tannins and flavonoids.
- the tannins of quebracho are also used as additives in oenology.
- the brown color of the Quebracho extract is a mixture of hydrolysable tannins, notably gallic acid and ellagic acid, which are found mainly in glycosylated form and condensed tannins, especially profietinidin.
- Sorghum as used in the invention, is an annual grass, whose variety "dyes" used in dyeing in Africa was found in archaeological layers a thousand years old.
- the two most commonly used African bicolor sorghum breeds for dyeing, food and cosmetics are caudatum and kafir.
- Sorghum extract consists of a mixture of flavonoids of the group of anthocyanidins, which are found in free form, glycosylated, or methoxylated and condensed tannins, including fustine, dihydrorobinétine, sulfurétine, apigeninidine, luteolinidine, cyanidine pelargonidine and fisetinidine.
- the cosmetic composition of the invention may contain one or other of these extracts as defined above or a mixture of several extracts from at least two of these plants.
- said at least one plant extract of natural origin represents between substantially 0.01% to 50% of the total weight of the cosmetic composition, preferably between substantially 0.5% and 20%.
- said at least one plant extract of natural origin represents between approximately 0.5% and 45% of the total weight of the cosmetic composition when said cosmetic composition is in a powdery dry form of the type pressed powder, in particular in a cosmetic composition of eyeshadow.
- said at least one plant extract of natural origin when introduced into an anhydrous pasty formula of composition its concentration preferably varies between approximately 0.5% and 15% of the total weight of the cosmetic composition.
- said at least one plant extract of natural origin when introduced into a cosmetic composition of the invention in the form of an emulsion, its concentration preferably varies between substantially 0.01% and 20% by weight. total of the cosmetic composition.
- the cosmetic composition comprises a mixture of plant extracts of natural origin derived from the extraction of at least two plants selected from Cosmos, Pernambuco, Oak, Quebracho and Sorghum, representing in total substantially 0.01% to 50% of the total weight of the cosmetic composition, more particularly between substantially 0.5% and 20% of the weight of the cosmetic composition.
- the plant extracts obtained after conventional extraction processes and from the previously described plants are naturally water-soluble, very little manipulable and hardly at all possible to be incorporated in the case of anhydrous cosmetic compositions of make-up products.
- said at least one plant extract of natural origin of the cosmetic composition is coupled to a mineral substrate, preferably calcium carbonate.
- any other insoluble mineral substrate may be coupled with said at least one plant extract of natural origin to make it insoluble.
- the combination of the plant extract with a mineral substrate contributes to making the plant extract substantially insoluble in the medium into which it is introduced.
- the use of plant extracts of natural origin insoluble in cosmetic compositions facilitate their incorporation into said compositions and in particular in anhydrous compositions or containing very little water. This coupling of the natural plant extract to a natural substrate is made sufficiently solid to prevent any subsequent release of the plant extract in the cosmetic composition in which it is incorporated.
- the cosmetic composition of the invention protects the epidermis against free radicals.
- the cosmetic composition is in the form of emulsion and / or cream and / or gel and / or body milk and / or powder and / or lotion and / or mask and / or balm, can be applied to the human epidermis.
- the cosmetic composition of the invention protects the hair against free radicals.
- the cosmetic composition is preferably in the form of shampoo and / or conditioner and / or gel and / or oil and / or spray and / or protection and / or hair care product for coloring and / or hair care repair and / or lotion and / or lacquer, applicable on the hair.
- the cosmetic composition of the invention protects the nails against free radicals and is preferentially in the form of care treatment and / or repair care and / or nail polish and / or base for the varnish.
- the cosmetic composition constitutes a makeup product for the skin and / or the hair and / or the eyelashes and / or the eyebrows and / or the nails.
- said cosmetic composition is in the form of cream for beautifying the epidermis and / or lipstick and / or blush. Eyelids and / or powder and / or mascara and / or liquid foundation and / or powder foundation and / or foam foundation and / or pencils and / or blush and / or eyeliner and / or nail polish.
- said cosmetic composition may be in any other form of makeup product normally used for topical application, preferably in the form of an anhydrous composition containing very little or no water.
- insoluble plant extracts of natural origin are introduced at a level of 50% by total dry weight of the composition. This is a percentage much higher than the percentages of incorporation of non-insoluble plant extracts into cosmetic compositions.
- plant extracts of insoluble natural origin are introduced at a level of 6% by total dry weight of the composition.
- the sole plant extract of insoluble natural origin introduced represents 0.4% of the total dry weight of the composition.
- the compositions contain respectively 62.8% and 80.4% of water, which renders these compositions of aqueous nature and no longer anhydrous, as in Examples 1 and 2.
- the invention allows the introduction of plant extracts of insoluble natural origin into anhydrous cosmetic compositions such as make-up products and / or into cosmetic compositions containing water in greater or lesser amounts.
- the list of ingredients of the cosmetic compositions of the examples set out above is not exhaustive.
- the cosmetic formulation involves a large number of ingredients.
- the invention is obviously not limited to some of these ingredients in particular and allows the incorporation of all the known ingredients of a cosmetic composition.
- the cosmetic composition will obviously be adapted to the dosage form that the makeup product takes.
- the invention also relates to the use of at least one plant extract of insoluble natural origin as anti-radical agent in a cosmetic composition for topical use to confer anti-free radical properties.
- This use according to the invention is preferably intended for the protection of the epidermis, nails and hair against environmental pollution, in all its forms (UV radiation 1 tobacco, toxic gas,), and especially against naturally occurring free radicals. in excess by the body during external stress.
- the invention relates ultimately to a method of applying a cosmetic composition for topical use for protecting the epidermis, the nails and the hair against free radicals, characterized in that it consists in applying to said epidermis, nails and hair a cosmetic composition as defined in the foregoing.
- the application of the cosmetic composition of the invention is made in accordance with current practices concerning cosmetic products. It will be possible in particular to apply the cosmetic composition of the invention manually or with the aid of a conventional utensil (brush, glove, comb, shovel, bomb, brush, cotton ).
- the objective of these tests is to highlight the anti-radical activity of pure vegetable extracts in powder form, as well as the anti-radical activity of these same extracts associated with an insoluble mineral substrate and dispersed in water. carnation oil, commonly used in cosmetic compositions of make-up products.
- AmplexRed is a compound that reacts stoichiometrically with H 2 O 2 , producing a fluorescent red compound, resofurin, which can be measured in fluorescence. This test makes it possible to detect small quantities of H 2 O 2 .
- the products of this test were tested starting from the concentration of 1 mg / ml, within a range of reason 10.
- the alpha-tocopherol positive control was meanwhile tested at the concentration of 0.1 ⁇ M and the BHA at the concentration of 50 ⁇ M.
- the products of this test were tested starting from the concentration of 1 ⁇ g / ml, within a range of reason 10.
- the BHA positive control was tested at concentrations of 50 and 500 ⁇ M.
- Cytotoxicity was previously monitored using an MTT test (3- (4,5-dimethylthiazol-2-yl) -2,5-diphenyl tetrazolium bromide (tetrazolium salt) to determine test.
- the skin explants were cut and cultured.
- UVA + B filter
- UVA power 11, 5 mW / cm 2 is 678.6 mJ / cm 2 / minute
- UVB power 0.78mW / cm 2 is 47.1 m J / cm 2 / minute
- Irradiation time 21 minutes That is about 1 J / cm 2 of UVB and 14J / cm 2 of UVA.
- the epidermis was then extracted and cell viability was assessed using MTT revelation.
- the lipids of the epidermis were extracted with a methanol / chloroform mixture, before assaying the lipid peroxidation using a specific kit, in particular using the PeroxiDetect kit (Sigma PD1). The results are expressed in nmoles of lipid peroxides per volume of sample.
- the negative control pure ethanol, did not reduce DPPH as expected. References, in particular tocopherol, have clearly reduced the DPPH. These negative and positive controls give the expected results and thus make it possible to validate the test.
- the 3 pure extracts tested in the range of 1 mg / ml to 0.01 mg / ml, reduced in a dose-dependent manner the stable radical compound DPPH, ie according to the tested dose the reduction of the DPPH is different.
- the approximate IC50 values for Cosmos, Quebracho and Pernambuco are 0.1 mg / ml, 0.06 mg / ml and 0.07 mg / ml, respectively.
- the approximate IC50 values for Cosmos, Québracho and Pernambuco are 7.4 ⁇ g / ml, 0.7 ⁇ g / ml and 0.8 ⁇ g / ml, respectively.
- Extracts associated with an insoluble mineral substrate effect on lipid peroxidation
- UV irradiation has resulted in a significant increase in the level of lipid peroxides in proportions usually obtained in the laboratory and this without changing the viability. It should be noted that the vehicle used for the solubilization of the products (carnation oil) did not interfere with the assay.
- the treatment of skin explants by reference greatly reduced the production of lipid peroxides after irradiation. This result was expected and validate the test.
- the cosmos plant extract tested at a concentration of 5%, 1% and 0.2% allowed a significant reduction in the concentration of lipid peroxides. At a concentration of 1%, the cosmos plant extract decreased by almost 50% the production of lipid peroxides after irradiation.
- the vegetal extract of Québracho tested at 50% did not show any effect while tested at 10% and 2%, it significantly decreased the production of lipid peroxides. At 10%, it decreased by about 40% the production of lipid peroxides after irradiation.
- association with a substrate does not alter the anti-radical properties of plant extracts of natural origin.
- the model of explant of human skin allows a topical application of the products to allow to study in vitro the effects of finished products, namely in this case an eyeshadow.
- UVA + B leads to the production of reactive oxygen species, ie oxygen free radicals, present in the skin during exposure to the sun (O 2. , OH “ , H 2 O 2 * ) -
- oxygenated free radicals are partly responsible for genetic damage (DNA damage) and cell damage
- oxygen free radicals induce a lipid peroxidation which gives rise to chain reactions inducing the formation of highly reactive species which disturb the biological functions of the membranes and lead to local phenomena. irritation and dry skin.
- oxygen free radicals can also be added various indirect effects contributing to an acceleration of skin aging.
- the objective of this study is to evaluate the anti-radical activity of an eyeshadow containing the plant extracts defined above, using a lipid peroxidation test on irradiated skin explants.
- the effects of this eyeshadow have been compared to an eyeshadow not containing anti-free radicals.
- a tummy tuck is performed on a 45-year-old woman (donor).
- DMEM Invitrogen 21969035
- Glutamine 2 nriM Penicillin-Streptomycin 50 IU / ml-50 ⁇ g / ml
- Fetal calf serum 10% DMEM (Invitrogen 21969035)
- a conventional lipid peroxidation test is performed on irradiated skin explants. This test, which is done by topical application of eye shadow, allows to study in vitro the effects of eyeshadow. Upon receipt, 4 cm 2 skin explants are cut and cultured. The skin explants then receive different treatments. Some receive the eyeshadow control, others the eyeshadow "test” containing plant extracts, others a sunscreen of protection index 20 (IP20) serving as a positive control and other no treatment (control negative).
- IP20 sunscreen of protection index 20
- the treatments are applied at a rate of 5 mg / cm 2 , and the explants are then placed for 24 hours in an incubator at 37 ° C. in the presence of 95% of air and 5% of CO2. . After incubation and washing, the explants of each series are exposed to ultraviolet radiation type A and B (UVA + B).
- UVA + B ultraviolet radiation type A and B
- the irradiation is performed by a SOL500 Sun Simulator lamp with a H2 filter and the exposure conditions are as follows:
- UVA + B filter - UVA: power 10 J / cm 2 - UVB: power 1 J / cm 2
- the surface of the explants is rinsed with PBS and for each explant, 3 punches of 8 mm are made and then incubated in sterile water at 62 0 C for 2 minutes, in order to separate the epidermis from the dermis. An additional punch of 8 mm is made for each treatment in order to evaluate the viability of the cells by the MTT reduction test (standard protocol).
- the epidermis is then extracted, and the viability of the cells assessed by MTT revelation.
- the lipids of the epidermis are extracted with a mixture methanol / chloroform (standard protocol), before a lipid peroxidation assay using a PeroxiDetect specific kit (Sigma PD1), following the procedure recommended by the supplier.
- the results are expressed in nmoles of lipid peroxides per volume of sample (30 .mu.l), and then converted into percentage (%) of protection relative to the irradiated control explant.
- the raw count data is transferred and processed under the software PRISM® (Graph Pad Software). Intergroup comparisons are performed by analysis of variance (ANOVA) followed by a Dunnett multiple comparison test.
- ANOVA analysis of variance
- UV irradiation resulted in a significant increase in the level of lipid peroxides in proportions usually obtained in the laboratory.
- IP20 sunscreen positive control
- the treatment of skin explants with IP20 sunscreen significantly decreased the production of lipid peroxides after irradiation (36% compared to the control + UV). This result was expected and validate the test.
- the eyeshadow control can slightly protect the skin from the effects of free radicals induced by UV irradiation.
- the eyeshadow containing the plant extracts has a greater protective capacity against free radicals than that of the eyeshadow control. The addition of plant extracts thus accentuates the anti-free radical power of the eye shadow (see last column of the table).
- plant extracts of insoluble natural origin also have the advantage of being easily incorporated in a large number of cosmetic compositions, especially in anhydrous makeup formulas.
- the fact of making plant extracts of natural origin insoluble also makes it possible to broaden the spectrum of action and incorporation of such compounds in the cosmetic compositions.
- the invention finds its industrial application in the design and use of cosmetic products for topical use.
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Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BRPI0814061-8A2A BRPI0814061A2 (pt) | 2007-07-06 | 2008-07-03 | Composição cosmética apresentando propriedades anti-radicais, e um método de aplicação correspondente |
| EP08827887A EP2173319A2 (fr) | 2007-07-06 | 2008-07-03 | Composition cosmetique ayant des proprietes anti-radicalaires et procede d'application correspondant |
| US12/452,458 US8475848B2 (en) | 2007-07-06 | 2008-07-03 | Cosmetic composition having anti-radical properties and corresponding application method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0704925 | 2007-07-06 | ||
| FR0704925A FR2918274B1 (fr) | 2007-07-06 | 2007-07-06 | Composition cosmetique ayant des proprietes anti-radicalaires et procede d'application correspondant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2009024671A2 true WO2009024671A2 (fr) | 2009-02-26 |
| WO2009024671A3 WO2009024671A3 (fr) | 2010-01-21 |
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ID=39183118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2008/000949 Ceased WO2009024671A2 (fr) | 2007-07-06 | 2008-07-03 | Composition cosmetique ayant des proprietes anti-radicalaires et procede d'application correspondant |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8475848B2 (fr) |
| EP (1) | EP2173319A2 (fr) |
| BR (1) | BRPI0814061A2 (fr) |
| FR (1) | FR2918274B1 (fr) |
| WO (1) | WO2009024671A2 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2945943B1 (fr) * | 2009-06-01 | 2015-04-03 | Lvmh Rech | Utilisation d'un extrait vegetal riche en polyphenols comme agent antioxydant en association avec un agent hydratant ou humectant |
| US8663611B2 (en) * | 2012-06-08 | 2014-03-04 | L'oreal S.A. | Perspiration and odor control compositions |
| FR3008890B1 (fr) * | 2013-07-23 | 2019-10-18 | Crodarom | Extrait de chene, composition comprenant ledit extrait et utilisations notamment cosmetiques |
| US20150058065A1 (en) * | 2013-08-21 | 2015-02-26 | International Business Machines Corporation | Generating work plans using substitute constituents |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH642990A5 (de) * | 1978-07-24 | 1984-05-15 | Parke Davis & Co | Verfahren zum faerben von gelatine fuer kapseln mit hilfe eines gegen den abbau durch licht oder oxidation stabilisierten natuerlichen farbstoffes. |
| US6171602B1 (en) * | 1997-08-29 | 2001-01-09 | E-L Management Corp. | Natural pigment-containing flowable powder |
| IT1317743B1 (it) * | 2000-01-28 | 2003-07-15 | Carlo Ghisalberti | Composizioni cosmetiche decorative e lacche vegetali. |
| US20060280762A1 (en) * | 2005-05-31 | 2006-12-14 | Richard Kostick | Color Cosmetics - Coloring/Staining the skin from fruit and plant color pigments |
| ITMI20051186A1 (it) * | 2005-06-23 | 2006-12-24 | Carlo Ghisalberti | Pigmenti inorganici micronizzati inertizzati mediante trattamento superficiale a doppio strato molecolare |
-
2007
- 2007-07-06 FR FR0704925A patent/FR2918274B1/fr not_active Expired - Fee Related
-
2008
- 2008-07-03 EP EP08827887A patent/EP2173319A2/fr not_active Withdrawn
- 2008-07-03 WO PCT/FR2008/000949 patent/WO2009024671A2/fr not_active Ceased
- 2008-07-03 US US12/452,458 patent/US8475848B2/en not_active Expired - Fee Related
- 2008-07-03 BR BRPI0814061-8A2A patent/BRPI0814061A2/pt not_active Application Discontinuation
Non-Patent Citations (1)
| Title |
|---|
| See references of EP2173319A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2173319A2 (fr) | 2010-04-14 |
| US8475848B2 (en) | 2013-07-02 |
| FR2918274A1 (fr) | 2009-01-09 |
| BRPI0814061A2 (pt) | 2015-01-06 |
| US20100247464A1 (en) | 2010-09-30 |
| WO2009024671A3 (fr) | 2010-01-21 |
| FR2918274B1 (fr) | 2009-12-18 |
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