Abstract:
PURPOSE: A composition for washing keratin materials comprising alkylamido ether sulphate and a cationic polymer in a cosmetically acceptable medium, a cosmetic process for treating keratin materials and the use of this composition as a shampoo are provided. Therefore, this composition improves cosmetic characteristics, in particular soft touch, easy handling and glossiness. CONSTITUTION: This composition comprises, in a cosmetically acceptable medium, 3 to 50% by weight of at least one (C8-30)alkylamido ether sulphate and at least one anionic surfactant selected from the group consisting of (C6-24)alkyl sulphate, (C6-24)alkyl ether sulphate, (C6-24)alkyl ether carboxylate and anionic (C6-24)alkyl polyglycoside, and 0.001 to 10% by weight of at least one cationic polymer whose cationic charge density is greater than or equal to one milliequivalent per gram, wherein the weight ratio of the anionic surfactant and (C8-30)alkylamido ether sulphate is 100 to 0.01.
Abstract:
PURPOSE: Provided is a novel cosmetic composition with improved properties, intended both for cleaning and conditioning keratin materials such as the hair, and comprising, in a cosmetically acceptable aqueous vehicle, a washing base and at least one specific amphoteric starch. CONSTITUTION: The cosmetic composition comprises, in a cosmetically acceptable aqueous medium, a washing base and at least one amphoteric starch chosen from the compounds of formulae (I) to (IV), wherein St-O is a starch moiety; R, which may be identical or different, are each chosen from a hydrogen atom or a methyl group; R', which may be identical or different, are each chosen from a hydrogen atom, a methyl group, or a -COOH group; n is chosen from integers ranging from 2 to 3; M, which may be identical or different, are each chosen from a hydrogen atom, an alkali metal, an alkaline-earth metal, NH4, quaternary ammonium compounds, or organic amines; and R'', which may be identical or different, are each chosen from a hydrogen atom or alkyl groups comprising from 1 to 18 carbon atoms, wherein the composition is a detergent and conditioning composition, and wherein the composition is free of fatty acid soaps.