| abstract |
The subject of the invention is the use in cosmetics of poly-N-α-lysine, poly-N-α-ornithine, poly-N-ε-lysine and poly-N-ε-ornithine derivatives, with guanidine and biguanide function. , to form a residual deposit on keratin materials, in particular reactive sheathing on the hair. It also relates to certain of these poly-N-α-lysine and -ornithine and poly-N-ε-lysine derivatives, as new compounds, as well as cosmetic compositions comprising these new compounds. |