| abstract |
Cosmetic hair post-treatment agent for improving washing fastness of coloring processes produced on hair and for color fixing, the post-treatment agent containing, in a cosmetic carrier, at least one acetylpyridinium derivative of formula (I) wherein R1 is a C 1 to C 6 alkyl group, a C 2 to C 6 alkenyl group, a C 2 to C 6 hydroxyalkyl group, a C 1 to C 6 alkoxy-C 2 to C 6 alkyl group, a carboxy-C 2 to C 6 alkyl group, an aryl-C 1 to C 6 alkyl group, a heteroaryl-C 1 to C 6 alkyl group, an aryl group, or a heteroaryl group, and X − is a physiologically acceptable anion. |