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US 2003/0143275 A1Published application
Cosmetic and/or dermatological composition containing at least one oxidation-sensitive hydrophilic active principle and at least one N-vinylimidazole polymer or copolymer
AssigneeL'oreal
InventorsBruno Biatry, Eric Lheureux
Life of this patent
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Abstract
The invention relates to a composition for topical use containing, in a physiologically acceptable medium having an aqueous phase, at least one oxidation-sensitive hydrophilic active principle and at least one non-crosslinked N-vinylimidazole polymer or copolymer, the active principle and the said polymer or copolymer both being in the aqueous phase.
Claims18
A composition comprising:
- a physiologically acceptable medium comprising an aqueous phase;
- at least one oxidation-sensitive hydrophilic active principle, and;
- at least one non-crosslinked N-vinylimidazole polymer or copolymer,
- the at least one active principle and the at least one non-crosslinked N-vinylimidazole polymer or copolymer both being present in the aqueous phase.
1 more element
A method of stabilizing an oxidation-sensitive hydrophilic active principle in an aqueous medium, comprising adding thereto a stabalizing amount of a non-crosslinked N-vinylimidazole polymer or copolymer.
Dependencies are inferred from the claim text.