Hair treatment kit comprises at least three separate confectionery agents A, B and C, where (A) is free of surfactant and contains at least an oxidative dye precursor, (B) is free of surfactant and contains at least an oxidative agent, (C) contains at least a surfactant, where at least one of the agent (A)-(C) is contained in an application device and (A)-(C) are mixed to produce a foam. An independent claim is included for coloring keratin fibers, comprising applying the agents (A)-(C) on the fibers, leaving the agent for 1-60 minutes, preferably 5-40 minutes, and washing.
