Patent ID: 8597371

Claim:
An agent for lightening keratinic fibers, comprising, in a cosmetically acceptable carrier: (i) at least one acyl pyridinium derivative of formula (I), in which R1 denotes a C 1 -C 6 alkyl group, a C 2 -C 6 alkenyl group, a C 2 -C 6 hydroxyalkyl group, a C 1 -C 6 alkoxy C 2 -C 6 alkyl group, a carboxy C 2 -C 6 alkyl group, an aryl C 1 -C 6 alkyl group, a heteroaryl C 1 -C 6 alkyl group, an aryl group or a heteroaryl group, R2, R3 and R4 each independently of one another denote hydrogen, a C 1 -C 6 alkyl group, a halogen atom or a C 1 -C 6 acyl group, with the proviso that at least one of the residues R2, R3 and R4 denotes a C 1 -C 6 acyl group, X − denotes a physiologically acceptable anion, (ii) at least one cationic polysaccharide, and (iii) at least hydrogen peroxide as an oxidizing agent.