Patent ID: 6312674
Filing Date: 2001-11-06
Classification: A61K,A61Q,Y10S

Abstract:
An oxidizing composition comprising, in a suitable cosmetic vehicle:at least one ceramide compound selected from compounds of formula (I): ##STR2##in which:R.sub.1 denotesa linear or branched, saturated or unsaturated, C.sub.1 -C.sub.50 hydrocarbon radical, optionally substituted with at least one hydroxyl group and said at least one hydroxyl group is optionally esterified with an acid R.sub.7 COOH, wherein R.sub.7 is a saturated or unsaturated, linear or branched, optionally mono- or polyhydroxylated C.sub.1 -C.sub.35 hydrocarbon radical, wherein said at least one hydroxyl group of radical R.sub.7 is optionally esterified with a saturated or unsaturated, linear or branched, optionally mono- or polyhydroxylated C.sub.1 -C.sub.35 fatty acid, ora radical R""--(NR--CO)--R', wherein R denotes a hydrogen atom or a mono- or polyhydroxylated C.sub.1 -C.sub.20 hydrocarbon radical, and R' and R"" are hydrocarbon radicals in which the sum of the carbon atoms ranges from 9 to 30, R' being a divalent radical, ora radical R.sub.8 --O--CO--(CH.sub.2).sub.p, in which R.sub.8 denotes a C.sub.1 -C.sub.20 hydrocarbon radical and p is an integer ranging from 1 to 12;R.sub.2 denotes a hydrogen atom, a saccharide radical, a sulphate residue, a phosphate residue, a phosphorylethylamine radical, or a phosphorylethylammonium radical;R.sub.3 denotes a hydrogen atom or a saturated or unsaturated, optionally mono- or polyhydroxylated C.sub.1 -C.sub.33 hydrocarbon radical, wherein said hydroxyl radical(s) is optionally esterified with an inorganic acid or with an acid R.sub.7 COOH, wherein R.sub.7 is a saturated or unsaturated, linear or branched, optionally mono- or polyhydroxylated C.sub.1 -C.sub.35 fatty acid, and wherein said hydroxyl radical(s) of said C.sub.1 -C.sub.35 fatty acid is optionally etherified with a (glycosyl).sub.n, (galactosyl).sub.m, sulphogalactosyl, phosphorylethylamine or phosphorylethylammonium radical,and further wherein R.sub.3 is optionally substituted with one or more C.sub.1 -C.sub.14 alkyl radicals, wherein n is an integer ranging from 1 to 4 and m is an integer ranging from 1 to 8;R.sub.4 denotes a hydrogen atom, a methyl or ethyl radical or a saturated or unsaturated, linear or branched, optionally hydroxylated C.sub.3 -C.sub.50 hydrocarbon radical or a radical --CH.sub.2 --CHOH--CH.sub.2 --O--R.sub.6 in which R.sub.6 denotes a C.sub.10 -C.sub.26 hydrocarbon radical or a radical R.sub.8 --O--CO--(CH.sub.2).sub.p, R.sub.8 denoting a C.sub.1 -C.sub.20 hydrocarbon radical and p being an integer ranging from 1 to 12;R.sub.5 denotes a hydrogen atom or a saturated or unsaturated, linear or branched, optionally mono- or polyhydroxylated C.sub.1 -C.sub.30 hydrocarbon radical, wherein said hydroxyl radical(s) is optionally etherified with a (glycosyl).sub.n, (galactosyl).sub.m, sulphogalactosyl, phosphorylethylamine or phosphorylethylammonium radical, wherein n is an integer ranging from 1 to 4 and m is an integer ranging from 1 to 8; and further wherein when R.sub.3 and R.sub.5 denote hydrogen or when R.sub.3 denotes hydrogen and R.sub.5 denotes methyl, then R.sub.4 does not denote hydrogen or a methyl or ethyl radical; andat least one oxidizing agent selected from an aqueous hydrogen peroxide solution, alkaline bromates, persalts, and polythionates,wherein said oxidizing composition does not contain a cationic polymer or vesicles encapsulating an oxidizing agent.