REDUCING COMPOSITION FOR TREATING KERATINOUS MATERIALS BASED ON AMPHIPHILIC POLYMERS OF AT LEAST AN ETHYLENICALLY UNSATURATED MONOMER WITH SULPHONIC GROUP AND COMPRISING A HYDROPHOBIC PART

摘要

The invention concerns a cosmetic composition for treating keratinous materials comprising in a carrier suitable for keratinous materials: (a) at least an amphiphilic polymer comprising at least an ethylenically unsaturated monomer with sulphonic group, in free form or partly or completely neutralised and further at least a hydrophobic part; (b) at least a reducing agent. The invention also concerns methods and devices for bleaching or permanent waving of keratinous fibres using said composition.