Cosmetic and/or dermatological use of a composition comprising at least one oxidation-sensitive hydrophilic active principle stabilized by at least one maleic anhydride copolymer
AssigneeL'oreal
InventorBruno Biatry
Life of this patent
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Abstract
The invention relates to the cosmetic and/or dermatological use of a composition for depigmenting and/or lightening the skin and/or hair, including body hair, the said composition comprising at least one oxidation-sensitive hydrophilic active principle chosen from ascorbic acid and its derivatives and at least one maleic anhydride copolymer, comprising one or more maleic anhydride comonomers and one or more comonomers chosen from vinyl acetate, vinyl alcohol, vinylpyrrolidone, olefins comprising from 2 to 20 carbon atoms, and styrene, in a physiologically acceptable medium comprising an aqueous phase.
Claims18
Cosmetic use of a composition for lightening the skin and/or hair, including body hair, the said composition comprising at least one oxidation-sensitive hydrophilic active principle chosen from ascorbic acid and its derivatives and at least one maleic anhydride copolymer, comprising one or more maleic anhydride comonomers and one or more comonomers chosen from vinyl acetate, vinyl alcohol, vinylpyrrolidone, olefins comprising from 2 to 20 carbon atoms, and styrene, in a physiologically acceptable medium comprising an aqueous phase.
Use of a combination composed of at least one oxidation-sensitive hydrophilic active principle chosen from ascorbic acid and its derivatives and of at least one maleic anhydride copolymer, comprising one or more maleic anhydride comonomers and one or more comonomers chosen from vinyl acetate, vinyl alcohol, vinylpyrrolidone, olefins comprising from 2 to 20 carbon atoms, and styrene, in a cosmetic composition comprising an aqueous phase, as depigmenting agents.
Use of at least one oxidation-sensitive hydrophilic active principle chosen from ascorbic acid and its derivatives and of at least one maleic anhydride copolymer, comprising one or more maleic anhydride comonomers and one or more comonomers chosen from vinyl acetate, vinyl alcohol, vinylpyrrolidone, olefins comprising from 2 to 20 carbon atoms, and styrene, for the preparation of a dermatological composition comprising an aqueous phase which is intended to depigment the skin and/or hair, including body hair.
Cosmetic treatment process intended to depigment and/or lighten the skin and/or hair, including body hair, comprising the application, to the skin, and/or hair, including body hair, of a composition comprising at least one oxidation-sensitive hydrophilic active principle chosen from ascorbic acid and its derivatives and at least one maleic anhydride copolymer, comprising one or more maleic anhydride comonomers and one or more comonomers chosen from vinyl acetate, vinyl alcohol, vinylpyrrolidone, olefins comprising from 2 to 20 carbon atoms, and styrene.
Dependencies are inferred from the claim text.