Patent ID: 7198648
Filing Date: 2007-04-03
Classification: A61K,A61Q

Abstract:
1. In a process for coloring keratin fibers, more particularly human hair, in which: optionally, a pretreatment preparation is applied to the fibers, a colorant M2 is then applied to the fibers, optionally having been mixed immediately before application to the fibers from: wherein said process comprises adding to at least one of the pre-treatment preparation or preparations M2a, M2b or M2 a compound of formula (I): wherein A and B independently represent hydrogen, halogen, a C R C represents a group —OR, NR D represents a group —OR, a carboxy group, a C E represents a group —OR, —OP(O)(OR —R represents hydrogen, a C —R or any of the corresponding physiologically compatible salts thereof.