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EP4637683A1 - Capsule pour soin de matière kératinique et masque la contenant - Google Patents

Capsule pour soin de matière kératinique et masque la contenant

Info

Publication number
EP4637683A1
EP4637683A1 EP22968890.8A EP22968890A EP4637683A1 EP 4637683 A1 EP4637683 A1 EP 4637683A1 EP 22968890 A EP22968890 A EP 22968890A EP 4637683 A1 EP4637683 A1 EP 4637683A1
Authority
EP
European Patent Office
Prior art keywords
inner core
water
capsule
capsule according
mask
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22968890.8A
Other languages
German (de)
English (en)
Inventor
Changjian HOU
Zhenxi LEE
Liang Zhang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOreal SA
Original Assignee
LOreal SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LOreal SA filed Critical LOreal SA
Publication of EP4637683A1 publication Critical patent/EP4637683A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/11—Encapsulated compositions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0212—Face masks
    • 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
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • A61K8/345—Alcohols containing more than one hydroxy group
    • 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
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/64—Proteins; Peptides; Derivatives or degradation products thereof
    • A61K8/65—Collagen; Gelatin; Keratin; Derivatives or degradation products thereof
    • 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
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/67—Vitamins
    • 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
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • A61K8/8129—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers or esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers, e.g. polyvinylmethylether
    • 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
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • A61K8/8135—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid; Compositions of derivatives of such polymers, e.g. vinyl esters (polyvinylacetate)
    • 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
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/86—Polyethers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • 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
    • A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
    • A61K2800/30—Characterized by the absence of a particular group of ingredients
    • A61K2800/31—Anhydrous

Definitions

  • the present invention relates to a product for caring for keratin materials.
  • the present invention relates to a capsule for caring for keratin materials and a mask containing the same.
  • the present invention also relates to a non-therapeutic process for caring for keratin materials.
  • Some cosmetic active ingredients used for caring for keratin materials are sensitive to water.
  • One aim of the present invention is to provide a product for caring for keratin materials which can protect water-sensitive cosmetic active ingredients from contacting water or moisture with easy application to the keratin materials.
  • Another aim of the present invention is to provide a non-therapeutic process for caring for keratin materials.
  • the present invention provides a capsule for caring for keratin materials comprising:
  • an anhydrous inner core comprising at least one water-sensitive cosmetic active ingredient
  • the water soluble film has a thickness in the range of 25-40 ⁇ m.
  • the water-sensitive cosmetic active ingredient is stable under room temperature, 4°C, 37°C, 45°C, and 55°C for at least 2 months, and under a temperature cycle from-20°C to 20°C for at least 24 hours since there is no water in the anhydrous inner core.
  • the capsule according to the present invention can be used to caring for keratin materials.
  • the present invention provides a mask for caring for keratin materials, comprising:
  • the present invention provides a non-therapeutic process for caring for keratin materials comprising dissolving the capsule as described above in water or a toner to obtain a composition and applying the composition onto the keratin materials.
  • the present invention provides a non-therapeutic process for caring for keratin materials, comprising the steps of:
  • keratin material is intended to cover human skin. Facial skin is most particularly considered according to the present invention.
  • the capsule of the present invention comprises:
  • an anhydrous inner core comprising at least one water-sensitive cosmetic active ingredient
  • the water soluble film has a thickness in the range of 25-40 ⁇ m.
  • the capsule according to the present invention has a particle size of 1-50 mm
  • anhydrous means that no water is added on purpose and the water content is less than 1%by weight of the anhydrous inner core.
  • the anhydrous inner core comprises at least one water-sensitive cosmetic active ingredient.
  • the water-sensitive cosmetic active ingredients which can be used according to the invention are in particular enzymes (for example lactoperoxidase, lipase, protease, phospholipase or cellulases) , natural extracts (such as green tea, balm extract, thyme extract) , procyanidol oligomers (PCO) (such as hawthorn PCO, pine PCO and grape PCO) , vitamins (in particular vitamin B (for example, vitamin B1, B2, B3, B5, B6, B9, or B12) , ascorbic acid (vitamin C) and its esters or retinol (vitamin A) and its esters) , pantothenic acid, phosphated and glucosylated derivatives, urea and rutin.
  • enzymes for example lactoperoxidase, lipase, protease, phospholipase or cellulases
  • natural extracts such as green tea, balm extract, thyme extract
  • the capsule comprises at least one water-sensitive cosmetic active ingredient selected from enzymes, natural extracts, procyanidol oligomers (PCO) , vitamins, phosphated and glucosylated derivatives, urea, and a combination thereof.
  • PCO procyanidol oligomers
  • the capsule comprises at least one water-sensitive cosmetic active ingredient selected from ascorbic acid, retinol, their esters, and a combination thereof.
  • ester of retinol can be retinyl palmitate.
  • the inner core comprises retinyl palmitate as a water-sensitive cosmetic active ingredient.
  • the inner core comprises ascorbic acid as a water-sensitive cosmetic active ingredient.
  • the inner core comprises tocopheryl acetate as a water-sensitive cosmetic active ingredient.
  • the skilled in the art can choose the amount of the water-senstive cosmetic active ingredient based on the intend purpose.
  • the water-sensitive cosmetic active ingredient is present in the inner core of the present invention in an amount ranging from 0.1 wt. %to 35 wt. %, more preferably from 0.2 wt. %to 30 wt. %, most preferably from 0.5 wt. %to 25 wt. %, relative to the total weight of the capsule according to the present invention.
  • the anhydrous inner core can be an oil type or a solid type.
  • an oil type inner core means that the inner core comprises the water-sensitive cosmetic active ingredient in an oily phase.
  • an oil type inner core is used when the water-sensitive cosmetic active ingredient can be dissolved or suspended in an oily phase.
  • the oil type inner core comprises at least one oil.
  • oil means a fatty compound or substance which is in the form of a liquid or a paste (non-solid) at room temperature (25°C) under atmospheric pressure (760 mmHg) .
  • oil (s) those generally used in cosmetics can be used alone or in combination thereof.
  • the oil (s) may be volatile or non-volatile, preferably non-volatile.
  • the oil may be a non-polar oil such as hydrocarbons, silicones, or the like; a polar oil such as esters, fatty alcohols and ethers; or a mixture thereof.
  • the oil may be oils of plant or animal origin and synthetic oils.
  • the oil type inner core according to the invention may in particular comprise hydrocarbon oils.
  • hydrocarbon oil means an oil mainly containing hydrogen and carbon atoms.
  • Hydrocarbon oils may be selected from:
  • -linear or branched, optionally cyclic, C6-C16 lower alkanes examples include hexane, undecane, dodecane, tridecane, and isoparaffins, for instance isohexadecane, isododecane and isodecane;
  • -linear or branched hydrocarbons containing more than 16 carbon atoms such as liquid paraffins, liquid petroleum jelly, polydecenes and hydrogenated polyisobutenes such as and squalane;
  • -plant oils for example, linseed oil, camellia oil, macadamia nut oil, corn oil, mink oil, olive oil, avocado oil, sasanqua oil, castor oil, safflower oil, jojoba oil, sunflower oil, almond oil, rapeseed oil, sesame oil, soybean oil, peanut oil, and mixtures thereof;
  • -artificial triglycerides for example, caprylic/capric triglyceride, glyceryl trimyristate, glyceryl tripalmitate, glyceryl trilinolenate, glyceryl trilaurate, glyceryl tricaprate, glyceryl tricaprylate, and glyceryl tri (caprate/caprylate/linolenate) ;
  • oils for example, diisopropyl adipate, dioctyl adipate, 2-ethylhexyl hexanoate, ethyl laurate, cetyl octanoate, octyldodecyl octanoate, isodecyl neopentanoate, myristyl propionate, 2-ethylhexyl 2-ethylhexanoate, 2-ethylhexyl octanoate, 2-ethylhexyl caprylate/caprate, methyl palmitate, ethyl palmitate, isopropyl palmitate, dicaprylyl carbonate, isopropyl lauroyl sarcosinate, isononyl isononanoate, ethylhexyl palmitate, isohexyl laurate, hexyl laurate, isocet
  • the oil type inner core comprises at least one oil selected from dicaprylyl carbonate, caprylic/capric triglyceride, and a combination thereof.
  • the oil type inner core may also comprise a polyol.
  • polyols those generally used in cosmetics can be used alone or in combination thereof.
  • polyol should be understood as meaning any organic molecule including at least two free hydroxyl groups.
  • apolyol in accordance with the present invention is present in liquid form at room temperature.
  • a polyol that is suitable for use in the invention may be a compound of linear, branched or cyclic, saturated or unsaturated alkyl type, bearing on the alkyl chain at least two–OH functions, in particular at least three–OH functions and more particularly at least four–OH functions.
  • the polyols that are suitable for formulating an inner core according to the present invention are in particular those notably containing from 2 to 32 carbon atoms and preferably 3 to 16 carbon atoms.
  • the polyol may be chosen, for example, from ethylene glycol, pentaerythritol, trimethylolpropane, propylene glycol, 1, 3-propanediol, glycerine, butanediol, isoprene glycol, pentylene glycol, hexylene glycol, caprylyl glycol, glycerol, polyglycerols, such as glycerol oligomers, for instance diglycerol, polyethylene glycols, and mixtures thereof.
  • said polyol is chosen from ethylene glycol, propylene glycol, glycerine, butanediol, pentaerythritol, trimethylolpropane, dipropylene glycol, caprylyl glycol, glycerol, polyglycerols and polyethylene glycols, and mixtures thereof, more preferably is dipropylene glycol.
  • oil type inner core has improved stability.
  • dipropylene glycol is present in the inner core in an amount ranging from 5 wt. %to 20 wt. %, relative to the total weight of the inner core.
  • the oil type inner core may also comprise at least one surfactant, preferably a non-ionic surfactant, more preferably a polyglycerol-based nonionic surfactant.
  • the polyglycerol-based nonionic surfactant is selected from polyglyceryl fatty acid ester.
  • the polyglyceryl fatty acid ester has a polyglycerol moiety derived from 2 to 10 glycerols, more preferably from 4 to 8 glycerols, and even more preferably 5 or 6 glycerols.
  • the polyglyceryl fatty acid ester comprise from 2 to 10 polyglyceryl units, more preferably 4 to 8 polyglyceryl units, and even more preferably 5 or 6 polyglyceryl units.
  • the polyglyceryl fatty acid ester may be chosen from monoesters, diesters and triesters of a linear or branched, saturated or unsaturated fatty acid, preferably saturated fatty acid, including from 2 to 30 carbon atoms, preferably from 4 to 30 carbon atoms, and more preferably from 6 to 30 carbon atoms, such as lauric acid, oleic acid, stearic acid, isostearic acid, capric acid, caprylic acid, and myristic acid.
  • the polyglycerol-based nonionic surfactant be chosen from: polyglyceryl mono-or di-caprate comprising from 2 to 10 glycerol units; polyglyceryl mono-or di-oleate comprising from 2 to 10 glycerol units; polyglyceryl mono-or di-caprylate comprising from 2 to 10 glycerol units, and combinations thereof.
  • the polyglycerol-based nonionic surfactant be selected from polyglyceryl-6 dicaprate (PG6 dicaprate) , polyglyceryl-6 dioleate (PG6 dioleate) , polyglyceryl-6 caprylate (PG6 caprylate) , polyglyceryl-2 oleate (PG2 oleate) , and combinations thereof.
  • the oil type inner core comprises retinyl palmitate, at least one polyglycerol-based nonionic surfactant such as polyglyceryl-2 oleate and at least one oil selected from dicaprylyl carbonate, caprylic/capric triglyceride, and a combination thereof.
  • the anhydrous inner core comprises retinyl palmitate, , at least one polyglycerol-based nonionic surfactant such as polyglyceryl-2 oleate, at least one polyol such as dipropylene glycol, and at least one oil selected from dicaprylyl carbonate, caprylic/capric triglyceride, and a combination thereof.
  • asolid type inner core means that the inner core is in a solid form.
  • the solid type inner core comprises particles of 20-80 mesh.
  • the solid type inner core further comprises at least one binder.
  • a binder is a viscous substance helping separate materials joined together.
  • the binder can be highly water soluble polymers such as xanthan gum, starch, and a combination thereof.
  • the binder is selected from vegetable starches, gelatin, polyacrylamides, polyvinylalcohol, polyacrylic acid, polyamines, polyethyleneimines, polyvinylpyrrolidone copolymers (PVP) , polyethylene glycols, cellulose gum and its derivatives such as methylcellulose derivatives, quaternary ammonium cellulose, carboxymethyl cellulose, xanthan gum, agar, pectin gum, guar gum and their derivatives, carboxypolymethylene, and their combinations.
  • PVP polyvinylpyrrolidone copolymers
  • the binder is selected from xanthan gum, starch, cellulose gum, starch, and a combination thereof.
  • the binder is cellulose gum.
  • the binder is present in the solid type inner core of the present invention in an amount ranging from 0.1 wt. %to 15 wt. %, more preferably from 0.5 wt. %to 2 wt. %, relative to the total weight of the core according to the present invention.
  • the solid type inner core further comprises a water soluble salt as a pH adjusting agent.
  • the water soluble salt can be for example, sodium or calcium or potassium salt.
  • the solid type inner core comprises a water soluble salt selected from sodium salts, calcium salts, potassium salts, and a combination thereof, preferably selected from sodium citrate, calcium citrate, potassium citrate, and a combination thereof.
  • the solid type inner core comprises sodium citrate.
  • the water soluble salt is present in the solid type inner core of the present invention in an amount so that the pH of the solid type inner core is in the range of 4-8.
  • the solid type inner core may also comprise an oil mentioned above.
  • the oil is present in the solid type inner core of the present invention in an amount ranging from 20 wt. %to 70 wt. %, relative to the total weight of the core according to the present invention.
  • the solid type inner core comprises ascorbic acid, tocopheryl acetate, sodium citrate, cellulose gum, and at least one oil selected from squalane, caprylic/capric glycerides, and a combination thereof.
  • the solid type or oil type inner core comprises a fragrance.
  • the flagrance is not particularly limited.
  • the solid type inner core comprises a pigment.
  • the pigment is not particularly limited.
  • the skilled in the art can adjust the amount of the pigment through conventional means.
  • the water soluble film has a thickness of 25-40 ⁇ m.
  • the water soluble film has a thickness of 25-30 ⁇ m.
  • the water soluble film can be dissolved in water at room temperature (about 20°C) within 30 seconds.
  • the water soluble film is made from a water soluble film forming polymer.
  • the water soluble film forming polymer is selected from polyvinyl pyrolidone, gelatin, collagen, sodium hyaluronate, pullulan, polyvinyl alcohol, hydroxy (Cl-C6) alkyl (Cl-C6) alkyl cellulose, and a combination thereof.
  • hydroxy (Cl-C6) alkyl (Cl-C6) alkyl cellulose mention can be made of hydroxypropyl methyl cellulose, and ethylhydroxyethyl cellulose.
  • the water soluble film is made from polyvinyl alcohol.
  • the water soluble film may also comprise a pigment.
  • the pigment is not particularly limited.
  • the present invention provides a capsule for caring for keratin materials comprising, relative to the total weight of the capsule:
  • an anhydrous inner core comprising from 0.1 wt. %to 35 wt. %of at least one water-sensitive cosmetic active ingredient
  • the present invention provides a mask for caring for keratin materials, comprising:
  • the mask according to the present invention comprises a water insoluble mask tissue.
  • water insoluble means that the mask tissue is not dissolvable in water and it doesn’ t break apart upon immersion in water.
  • the skilled in the art can choose a suitable mask tissue and the weight ratio of the mask tissue used and the capsule according to the present invention based on the nature of the capsule.
  • the mask tissue can be a woven or non-woven fabric made of natural fibers such as cotton, pulp, bamboo and cellulose fibers, semi-natural fibers such as viscose rayon fibers and synthetic fibers such as polyester fibers, polyethylene terephthalate fibers, polyethylene fibers, and polypropylene fibers. Two or more selected from the above fibers may be used in combination.
  • the mask tissue is an alginate tissue.
  • Alginate tissues are known in the art and are described in WO2020001069A1.
  • an alginate tissue may comprise a water insoluble alginate chosen from calcium alginate, strontium alginate, zinc alginate, copper alginate, manganese alginate, or a mixture thereof, preferably calcium alginate, preferably in an amount ranging from 20 wt.%to 100 wt. %, preferably from 20 wt. %to 50 wt. %, relative to the total weight of the tissue.
  • the capsule according to the present invention comprises a pH adjusting agent selected from sodium acetate, sodium citrate, sodium tartrate, and a combination thereof in an amount ranging from 0.01 wt. %to 1.0 wt. %, preferably from 0.05 wt. %to 0.45 wt. %, more preferably from 0.15 wt. %to 0.3 wt. %, relative to the total weight of the capsule according to the present invention.
  • a pH adjusting agent selected from sodium acetate, sodium citrate, sodium tartrate, and a combination thereof in an amount ranging from 0.01 wt. %to 1.0 wt. %, preferably from 0.05 wt. %to 0.45 wt. %, more preferably from 0.15 wt. %to 0.3 wt. %, relative to the total weight of the capsule according to the present invention.
  • the mask tissue may be consisted of one or more layers. If a multilayer tissue is used, the material of each layer may be the same or different from each other.
  • the multilayer tissue can be prepared by laminating multiple layers made from the materials mentioned above.
  • the mask tissue can have a wide variety of shapes, depending on the desired use and characteristic of the mask.
  • the mask tissue is typically designed to fit the area of the skin to which topical application is desired.
  • the mask tissue is designed to correspond to the shape of the face avoiding the eye, nostril, and mouth areas, as necessary.
  • the weight ratio of the water insoluble substrate to the capsule ranges from 1: 1 to 1: 10. More preferably, the weight ratio of the water insoluble substrate to the capsule ranges from 1: 1 to 1: 15.
  • the capsule according to the present invention can be prepared by firstly preparing the anhydrous inner core and the water soluble film separately and then wrapping the inner core with the film.
  • the anhydrous inner core can be prepared by mixing all components for the anhydrous inner core.
  • the film can be prepared with a water soluble film-forming polymer by a casting method as well known to the skilled in the art.
  • asolvent and polyol such as water, glycerin, ethylene glycol, and a mixture thereof
  • a solvent and polyol such as water, glycerin, ethylene glycol, and a mixture thereof
  • the mixture may be heated until 70 or 80°C, for example 75°C.
  • the water soluble film-forming polymer may then be added during a vigorous mixing step to avoid polymer agglomeration.
  • Any optional ingredient may then be added.
  • Optional ingredients such as pigments, perfume, and preservatives may be added at a temperature ranging from 25°C to 45°C.
  • the film-forming material may be poured into a film drawing machine where a uniform film is drawn out on a rotating belt.
  • the capsule can be prepared with a known process.
  • the anhydrous inner core can be filed into the water-soluble film in the shape of a capsule and the water soluble film can be sealed by heating.
  • the sealing can be carried out at a temperature ranging from 160 °C to 200°C.
  • the capsule according to the present invention can be used to care for keratin materials.
  • the present invention provides a non-therapeutic process for caring for keratin materials comprising dissolving the capsule as described above in water or a toner to obtain a composition and applying the composition onto the keratin materials.
  • the keratin materials can be, in particular, the skin.
  • the present invention provides a non-therapeutic process for caring for keratin materials comprising the steps of:
  • the keratin materials are the skin.
  • the mask as defined above are applied on at least one zone of the skin.
  • composition or the mask as defined above are applied on facial skin and/or eye skin.
  • the application time is from 5 minutes to 45 minutes, preferably from 10 minutes to 30 minutes.
  • Capsules of invention examples (IE) 1-2 and comparative example (CE) 1 were prepared.
  • oil type or solid type inner cores of invention examples 1-2 and comparative example 1 were prepared based on the ingredients given in Tables 2 and 3.
  • the amounts in Table 2 and table 3 are given in %by weight of active ingredient relative to the total weight of the inner core.
  • SODIUM CITRATE (and) CELLULOSE GUM comprises SODIUM CITRATE 98%and CELLULOSE GUM 2%.
  • ASCORBIC ACID (and) YELLOW 6 comprises ASCORBIC ACID 90.415%, SUCROSE 9.56%and YELLOW 6/CI 159850.025%.
  • SQUALANE (and) CAPRYLIC/CAPRIC GLYCERIDES (and) FRAGRANCE/PARFUM (and) TOCOPHERYL ACETATE comprises SQUALANE 47.42%, CAPRYLIC/CAPRIC GLYCERIDES 24.69%, DEXTRIN 19.75%, SILICA 4.94%, FRAGRANCE/PARFUM 2.2%and TOCOPHERYL ACETATE 1%.
  • oil type inner cores as shown in Table 2 can be prepared as follows, taking that of invention example 1 as an example:
  • the solid type inner cores as shown in Table 3 can be prepared as follows, taking that of invention example 2 as an example:
  • the stability of the water-sensitive cosmetic active ingredient contained in the capsules prepared above was evaluated as follows:
  • the stability of the water-sensitive cosmetic active ingredient will be evaluated as “Pass” if the amount of the water-sensitive cosmetic active ingredient decreased less than 30 wt. %after all of the stability tests mentioned above, otherwise, it will be evaluated as “Fail” .
  • Color it is acceptable if there is no color change or a slightly change on color, and it is not acceptable if color changes from transparent to brownish.
  • the compatibility will be classified as “Pass” if both the appearance and the color are acceptable after two months of storage at all testing temperatures, otherwise it will be classified as “Fail” .

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Dermatology (AREA)
  • Emergency Medicine (AREA)
  • Cosmetics (AREA)

Abstract

Une capsule pour le soin de matières kératiniques comprend : un noyau interne anhydre comprenant au moins un principe actif cosmétique sensible à l'eau ; et b) un film soluble dans l'eau enveloppant le noyau interne, le film soluble dans l'eau ayant une épaisseur comprise entre 25 et 40 µm. Un procédé non thérapeutique pour le soin de matières kératiniques comprend la dissolution de la capsule telle que décrite ci-dessus dans de l'eau ou un toner pour obtenir une composition et l'application de la composition sur les matières kératiniques.
EP22968890.8A 2022-12-21 2022-12-21 Capsule pour soin de matière kératinique et masque la contenant Pending EP4637683A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/140661 WO2024130588A1 (fr) 2022-12-21 2022-12-21 Capsule pour soin de matière kératinique et masque la contenant

Publications (1)

Publication Number Publication Date
EP4637683A1 true EP4637683A1 (fr) 2025-10-29

Family

ID=91587557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22968890.8A Pending EP4637683A1 (fr) 2022-12-21 2022-12-21 Capsule pour soin de matière kératinique et masque la contenant

Country Status (4)

Country Link
EP (1) EP4637683A1 (fr)
CN (1) CN120187396A (fr)
FR (1) FR3143978A1 (fr)
WO (1) WO2024130588A1 (fr)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19755420A1 (de) * 1997-12-13 1999-06-17 Schwarzkopf Gmbh Hans Mittel zur Behandlung keratinischer Fasern
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