Reductive decoloration of keratin-containing fibers

摘要

The invention relates to compositions comprising a combination of (a) at least one organic compound which carries at least one thiol group and at least one optionally derivatized carboxyl group, for example L-cysteine, and (b) at least one organic compound selected from the group which is formed from cyclic, organic carbonates, glycerol and its derivatives and C4-C12 fatty acid dimethylamides. Using these low-odor compositions it is possible to reductively decolor colored keratin-containing fibers, in particular human hair, in a rapid and effective manner.

主权项

1. Agent for reductive decoloration of keratin-containing fibers comprising in a vehicle an active ingredient combination of
(a) at least one organic compound having at least one thiol group and at least one optionally derivatized carboxyl group, (b) at least one cyclic organic carbonate, of formula (II-1) wherein one of R1, R2, R3 and R4 is methyl and the remainder are hydrogen, wherein the compounds of component (b) are present in an amount of 5 wt % to 50 wt %, each based on total weight of the agent, and (c) oxalic acid.