Hair waving composition comprising at least one multiguanidine

摘要

Cosmetic composition in a medium comprises multiguanidine compound (I) not belonging to hydroxide family, where (I) is selected to react on cystines of keratinous fibers, by a beta-elimination reaction producing dehydro-alanine and leading to the formation of lanthionine, for curling to 0.2-3 cm of the keratinous fibers in less than 60 minutes. Independent claims are also included for: (1) a kit comprising the composition; (2) a process of straightening the keratinous matters comprising applying the composition; and (3) an active agent to straighten keratinous fibers comprising (I).