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
  • A61K8/0212—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
  • A61K8/37—Esters of carboxylic acids
• • 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
  • A61K8/671—Vitamin A; Derivatives thereof, e.g. ester of vitamin A acid, ester of retinol, retinol, retinal
• • 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
  • A61K8/676—Ascorbic acid, i.e. vitamin C
• • 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
  • A61K8/678—Tocopherol, i.e. vitamin E
• • 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
  • A61K8/73—Polysaccharides
  • A61K8/733—Alginic acid; Salts thereof
• • 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
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q19/00—Preparations for care of the skin
  • A61Q19/08—Anti-ageing preparations
• • 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

• Skin aging is part of the aging process of human body, which not only relates to the age itself, but also closely relates to external factors, such as sunlight exposure.
• the light induced skin aging ( “light-aging” ) is mainly caused by sunlight irradiation, and as depletion of the ozone layer is aggravating, the light-aging of the skin becomes more and more serious, which affects the appearance of the skin.
• lipophilic active ingredient such as retinoids cannot be delivered into the skin effectively.
• the present invention provides a composition for caring for keratin materials, comprising:
• the present invention provides a mask for caring for keratin materials, comprising:
• the present invention also provides a non-therapeutic process for caring for keratin materials, in particular the skin, comprising the step of applying the composition or the mask according to the present invention on the keratin materials.
• retinoids are stable for a relatively long term and can be delivered into the skin effectively.
• keratin material is intended to cover the skin. Facial skin and eye skin are most particularly considered according to the present invention.
• stable means that retinol or its derivatives contained in the mask will not decompose substantially for at least 2 months.
• composition for caring for keratin materials comprises:
• the composition according to the present invention comprises at least one retinoid.
• the retinoids according to the present invention include retinol (vitamin A) , retinal (vitamin A aldehyde) , retinoic acid (vitamin A acid) , or an ester of retinol and of a C 2 -C 20 acid, such as the propionate, the acetate, the linoleate or the palmitate of retinol (retinyl palmitate) , among others.
• the retinoid is selected from retinol, retinal, retinoic acid, esters of retinol and of a C 2 -C 20 acid, and a combination thereof.
• retinoids mention may more particularly be made of retinol, retinal, retinoic acid, in particular all-trans retinoic acid and 13-cis retinoic acid, retinol derivatives, such as retinyl acetate, propionate or palmitate, and the retinoids described in the following patent applications: FR 2 370 377, EP 0 199 636, EP 0 325 540 and EP 0 402 072.
• the retinoid is retinol or a pro-retinol.
• retinol is intended to mean all the isomers of retinol, i.e. all-trans retinol, 13-cis retinol, 11-cis retinol, 9-cis retinol and 3, 4-didehydro retinol.
• retinyl palmitate the palmitate of retinol
• the retinoid is selected from retinol, retinyl palmitate, and a combination thereof.
• the composition according to the present invention comprises retinol and/or retinyl palmitate.
• the retinoid is present in an amount ranging from 0.1 wt.%to 5 wt. %, preferably from 0.1 wt. %to 2 wt. %, more preferably from 0.15 wt. %to 1 wt. %, relative to the total weight of the composition.
• composition according to the present invention an antioxidant combination of i) ascorbic acid or its derivative, ii) tocopherol or its derivative, and iii) at least one hydroxyhydrocinnamate antioxidant.
• derivatives of ascorbic acid include aminopropyl ascorbyl phosphate, ascorbic acid polypeptide, ascorbyl dipalmitate, ascorbyl glucoside, ascorbyl linoleate, ascorbyl methylsilanol pectinate, ascorbyl palmitate, ascorbyl tetraisopalmitate, trisodium ascorbyl palmitate phosphate, disodium ascorbyl sulfate, calcium ascorbate, methylsilanol ascorbate, sodium ascorbate, sodium ascorbyl phosphate, sodium ascorbyl/cholesteryl phosphate, tetrahexyldecyl ascorbate, magnesium ascorbyl phosphate, among others.
• the composition according to the present invention comprises one or more of ascorbic acid, aminopropyl ascorbyl phosphate, ascorbic acid polypeptide, ascorbyl dipalmitate, ascorbyl glucoside, ascorbyl linoleate, ascorbyl methylsilanol pectinate, ascorbyl palmitate, ascorbyl tetraisopalmitate, trisodium ascorbyl palmitate phosphate, disodium ascorbyl sulfate, calcium ascorbate, methylsilanol ascorbate, sodium ascorbate, sodium ascorbyl phosphate, sodium ascorbyl/cholesteryl phosphate, tetrahexyldecyl ascorbate, magnesium ascorbyl phosphate.
• the composition according to the present invention comprises ascorbic acid and/or ascorbyl glucoside.
• ascorbic acid or its derivative is present in an amount ranging from 0.05 wt. %to 3 wt. %, preferably from 0.1 wt. %to 2 wt. %, more preferably from 0.15 wt. %to 1 wt. %, relative to the total weight of the composition.
• derivatives of tocopherol include tocopheryl acetate, tocopheryl linoleate, tocopheryl linoleate/oleate, tocopheryl nicotinate, tocopheryl retinoate, sodium tocopheryl phosphate, dioleyl tocopheryl methylsilanol, among others.
• the composition according to the present invention comprises one or more of tocopherol, tocopheryl acetate, tocopheryl linoleate, tocopheryl linoleate/oleate, tocopheryl nicotinate, tocopheryl retinoate, sodium tocopheryl phosphate, and dioleyl tocopheryl methylsilanol.
• composition according to the present invention comprises tocopherol.
• tocopherol or its derivative is present in an amount ranging from 0.05 wt. %to 3 wt. %, preferably from 0.1 wt. %to 2 wt. %, more preferably from 0.15 wt. %to 1 wt. %, relative to the total weight of the composition.
• the hydroxyhydrocinnamate antioxidant is selected from pentaerythrityl tetra-di-t-butyl hydroxyhydrocinnamate, octadecyl di-t-butyl-4-hydroxyhydrocinnamate, tetradibutyl pentaerithrityl hydroxylhydrocinnamate, and a combination thereof.
• the hydroxyhydrocinnamate antioxidant is present in an amount ranging from 0.05 wt. %to 3 wt. %, preferably from 0.1 wt. %to 2 wt.%, more preferably from 0.15 wt. %to 1 wt. %, relative to the total weight of the composition.
• composition of the present invention may comprise an aqueous phase.
• Said aqueous phase comprises water.
• the aqueous phase comprises an organic solvent miscible with water (at room temperature 25°C) selected from glycols and polyols having from 2 to 20 carbon atoms, preferably from 2 to 10 carbon atoms, and preferentially having from 2 to 6 carbon atoms, such as glycerin, propylene glycol, butylene glycol, pentylene glycol, hexylene glycol, caprylyl glycol, dipropylene glycol, diethylene glycol; and combinations thereof, so as to provide a hydration effect.
• an organic solvent miscible with water selected from glycols and polyols having from 2 to 20 carbon atoms, preferably from 2 to 10 carbon atoms, and preferentially having from 2 to 6 carbon atoms, such as glycerin, propylene glycol, butylene glycol, pentylene glycol, hexylene glycol, caprylyl glycol, dipropylene glycol, diethylene glycol; and combinations thereof, so as to provide
• the aqueous phase is present in the composition of the present invention in an amount ranging from 50%to 95%by weight, preferably from 60%to 85%by weight, relative to the total weight of the composition.
• composition of the present invention may comprise an oily phase.
• Said oily phase comprise at least one oil.
• the oil can be volatile or non-volatile.
• oil means a water-immiscible non-aqueous compound that is liquid at room temperature (25°C) and at atmospheric pressure (760 mmHg) .
• non-volatile oil means an oil that may remain on keratin materials at room temperature and atmospheric pressure for at least several hours and that especially has a vapour pressure of less than 10 -3 mmHg (0.13 Pa) .
• a non-volatile oil may also be defined as having an evaporation rate such that, under the conditions defined previously, the amount evaporated after 30 minutes is less than 0.07 mg/cm 2 .
• oils may be of plant, mineral or synthetic origin.
• Said oil can be selected from hydrocarbon-based, silicone or fluorinated oils.
• hydrocarbon-based oil means an oil formed essentially from, or even constituted by, carbon and hydrogen atoms, and optionally O and N atoms, and free of Si and F heteroatoms. Such oil can contain alcohol, ester, ether, carboxylic acid, amine and/or amide groups.
• silicon oil means an oil containing at least one silicon atom, especially containing Si-O groups.
• fluorinated oil means an oil containing at least one fluorine atom.
• the oil is selected from hydrocarbon-based oils.
• the oily phase is present in the composition of the present invention in an amount ranging from 1 wt. %to 20 wt. %, preferably from 2 wt. %to 10 wt. %, relative to the total weight of the composition of the present invention.
• composition according to the present invention can comprises one or more additional cosmetic active ingredients.
• enzymes for example, enzymes; flavonoids; humetants (for example, biosaccharide gum-1, mannose, sodium hyaluronate) ; tensioning agents; soothing agents; among others.
• composition of the present invention may comprise conventional cosmetic adjuvants or additives, for instance, fragrances, surfactants (for example, non-ionic surfactants) , chelating agents (for example, trisodium ethylenediamine disuccinate) , preserving agents (for example, chlorphenesin and phenoxyethanol) and bactericides (for example, hydroxyacetophenone) , thickeners (for example, xanthan gum, ammonium polyacryloyldimethyl taurate) , pH adjusting agents (for example, sodium citrate) , and combinations thereof.
• fragrances for instance, fragrances, surfactants (for example, non-ionic surfactants) , chelating agents (for example, trisodium ethylenediamine disuccinate) , preserving agents (for example, chlorphenesin and phenoxyethanol) and bactericides (for example, hydroxyacetophenone) , thickeners (for example, xanthan gum, ammonium polyacryloyld
• the present invention provides a composition for caring for keratin materials comprising, relative to the total weight of the composition:
• hydroxyhydrocinnamate antioxidant selected from pentaerythrityl tetra-di-t-butyl hydroxyhydrocinnamate, octadecyl di-t-butyl-4-hydroxyhydrocinnamate, tetradibutyl pentaerithrityl hydroxylhydrocinnamate, and a combination thereof.
• composition of the present invention may be in the form of gel, lotion, or emulsion.
• composition according to the present invention can be impregnated into a mask tissue to form a mask.
• the present invention relates to a mask for caring for keratin materials, comprising:
• the mask according to the present invention comprises a hydrophilic mask tissue.
• the mask tissue is water-insoluble.
• 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 composition according to the present invention based on the nature of the composition.
• 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 combination thereof, preferably calcium alginate, preferably in an amount ranging from 20 wt. %to 100 wt. %, relative to the total weight of the tissue.
• the composition 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 composition 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 composition according to the present invention.
• 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 and the composition ranges from 1: 3 to 1: 20. More preferably, the weight ratio of the water insoluble substrate and the composition ranges from 1: 10 to 1: 18.
• composition or mask according to the present invention is intended for topical application and can especially be used for caring for keratin materials, and especially the skin.
• composition according to the present invention can be used for anti-wrinkling.
• the present invention provides a non-therapeutic process for caring for keratin materials, in particular the skin, comprising the step of applying the composition or the mask as defined above on the keratin materials.
• the keratin materials are facial skin and/or eye skin.
• the present invention provides a non-therapeutic process for caring for keratin materials, in particular skin, comprising:
• compositions according to invention example (IE. ) 1 and comparative examples (CE. ) 1-4 were prepared with the ingredients listed in Table 2 (the contents are expressed as weight percentages of active material with regard to the total weight of each composition, unless otherwise indicated) :
• Composition of invention example 1 represents composition according to the present invention.
• Composition of comparative example 1 does not comprise an antioxidant.
• Composition of comparative example 2 does not comprise ascorbic acid or its derivative.
• Composition of comparative example 3 does not comprise ascorbic acid or its derivative, and hydroxyhydrocinnamate antioxidant.
• invention example (IE. ) 4 20 g of the composition in Table 4 was impregnated into a tissue comprising 100 wt. %of alginate fiber derived from seaweed relative to the total weight of the tissue for 12 hours, wherein the weight ratio of the tissue and the composition is 1: 13.5. Then the procedure of invention example 2 was followed to determine the content of retinyl palmitate in the composition squeezed out.
• comparative example (CE. ) 5 20 g of the composition in Table 4 was impregnated into a tissue made of viscose fiber, wherein the weight ratio of the water insoluble substrate and the composition is 1: 13.5. Then the procedure of invention example 2 was followed to determine the content of retinyl palmitate in the composition squeezed out.

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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)
• Gerontology & Geriatric Medicine (AREA)
• Cosmetics (AREA)

Applications Claiming Priority (1)

Publications (1)

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ID=90014927

Family Applications (1)

Country Status (4)

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• 2022
  • 2022-08-31 EP EP22956878.7A patent/EP4580614A1/de active Pending
  • 2022-08-31 WO PCT/CN2022/116226 patent/WO2024045049A1/en not_active Ceased
  • 2022-08-31 CN CN202280098794.2A patent/CN119654146A/zh active Pending
  • 2022-10-10 FR FR2210338A patent/FR3139006A1/fr active Pending

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