Patent ID: 7413579

Claim:
A method for dyeing keratin-containing fibers, in particular human hair, comprising the steps of: (A) coloring the hair by contacting the hair with a dyeing composition, comprising color-imparting components for a contact time Z 1 ; (B) rinsing the hair to remove the dying composition; (C) optionally drying the rinsed hair; (D) contacting at least a portion of the hair from step (B) or (C) with a nuancing agent having a viscosity of from 5000 to 100 000 mPa·s comprising, in a cosmetic carrier, at least one thickener, hydrogen peroxide and at least one alkalinizing agent for a contact time Z 2 ; (E) rinsing the hair to remove the adjusting agent; wherein the dyeing composition comprises a color-imparting component comprising, (a) at least two oxidation dye precursors, where at least one oxidation dye precursor must be of the developer type or (b) at least two oxo dye precursors, where at least one oxo dye precursor must be a reactive carbonyl compound.