Patent ID: 8609076

Claim:
A method for improving the mechanical strength of human hair of African origin and/or preventing the hair from breaking, comprising applying to the hair, a composition comprising at least one polyol of formula (I) in a cosmetically acceptable medium: wherein: m and n each represent, independently of each other, an integer ranging from 0 to 6, x and y each represent, independently of each other, 0 or 1, R 1 and R 2 each represent, independently of each other, H, OH, —COOM, a halogen atom or a C 1 -C 4 alkyl or —NR 1 ′R 2 ′ group; M represents a hydrogen atom, an alkali metal or alkaline-earth metal, or a C 1 -C 4 alkyl group; R 1 ′ and R 2 ′ each represent, independently of each other, H or a C 1 -C 4 alkyl group; A represents: or a salt thereof.