The use of specified polycarboxylic acids and their salts in compositions for the treatment of hair such as shampoos and conditioners to improve the effectiveness of protective agents and/or conditioners used in such compositions

摘要

The use of specified polycarboxylic acids or their salts in cosmetic compositions for the treatment of keratinic matter comprising at least one protective agent and/or conditioner to improve the efficacity of the protective agent and/or conditioner and the compositions themselves. The use of specified polycarboxylic acids or their salts in cosmetic compositions for the treatment of keratinic matter comprising at least one protective agent and/or conditioner to improve the efficacity of the protective agent and/or conditioner and the compositions themselves. The hydroxycarboxylic acids are of formula (I). R-N-(CH(R')COOX)2 (I) R : H, -CH(COOX)-(CH2)2COOX, -CH2CH2OH, -CH(CH3)-COOX; R' : -CH2-COOX when R is H, H when R is not H; and X : H, monovalent or divalent cation deriving from a transition metal or an alkali metal or an alkaline earth metal or an organic amine, an ammonium ion.