Use of lysine pyrrolidone carboxylate and/or of arginine pyrrolidone carboxylate as an antoxidant substance in cosmetic or pharmaceutical compositions
AssigneeL'oreal
InventorsLan Quang N'Guyen, Etienne Soudant
Life of this patent
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Abstract
The use of lysine pyrrolidone carboxylate and arginine pyrrolidone carboxylate are disclosed as antioxidants in a cosmetic composition combined with at least one phenolic derivative.
Claims8
A method of inhibiting oxidation in a cosmetic or pharmaceutical composition intended for the treatment of the skin comprising combining with the cosmetic or pharmaceutical vehicle of said composition an anti-oxidant mixture comprising:
- (i) from 0.1 to 20% by weight of an active ingredient selected from the group consisting of lysine pidolate, arginine pidolate and mixtures thereof, and
- (ii) from 0.005 to 5% by weight of a phenolic derivative selected from the group consisting of tocopherol and derivatives thereof, butylhydroxytoluene and derivatives thereof, and esters and amides of caffeic acid.
A cosmetic or pharmaceutical composition containing a cosmetically or pharmaceutically acceptable vehicle having an antioxidant mixture having the following proportions in relation to the total weight of said composition:
- (i) from 0.1 to 20% by weight of an active ingredient selected from the group consisting of lysine pidolate, arginine pidolate and mixtures thereof, and
- (ii) from 0.005 to 5% by weight of a phenolic derivative selected from the group consisting of tocopherol and derivatives thereof, butylhydroxytoluene and derivatives thereof, and esters and amides of caffeic acid.
Dependencies are inferred from the claim text.