| 摘要 |
Use of amphoteric surface active agents as precipitating agents for cationic polymers in the diluted state in cosmetic agents for the hair and skin.- DETAILED DESCRIPTION - Amphoteric surface active agents (I) are incorporated into transparent aqueous cosmetic compositions for the hair and/or skin and designed to be rinsed, in amounts of 0.5-10 (preferably 0.5-3) wt.% on total weight of the composition, as precipitating agent for a water-soluble or water-dispersible cationic polymer derived from a polysaccharide (II) at the dilution prevailing during application of the composition to the hair and/or skin. The compositions are comprised to at least 90 % of their weight of an aqueous phase comprising 8-20 wt.% of a system consisting of at least one anionic surfactant (III), at least one betaine surfactant (IV) and the cationic polymer (II), the amounts of (III), (IV) and (II) and the nature of (II) in the system being such that the aqueous phase containing 8-20 % of the system has a transmittance measured at 600 nm of at least 90 % and exhibits no phase separation with formation of a precipitate upon dilution |
