The present invention relates to a 2-step methods, and compositions for
providing more vibrant, natural and long-lasting color to hair and at the
same time reducing hair fiber damage associated with alternative current
methods. In the first step the hair is contacted for a period of time
with a dye precursor mixture containing specific oxidative hair dye
precursors under conditions where these dyes are substantially inactive.
Color is then developed in a second step by contacting the hair with a
mixture of a peroxide compound and a persulfate salt. Surprisingly the
2-step method leads to considerable "lift" or lightening without
negatively impacting the coloring ability of the oxidative dye. The
invention also relates to kits providing the means to accomplish these
steps.