Dyeing product for keratin fibers comprising ammonium salts

Abstract

A dyeing product for keratin fibers, preferably human keratin fibers, more preferably human hair, including at least the compositions A and B. Composition A comprises a) one or more hair direct dyes, and b) one or more alkalizing agents. Composition B is an aqueous composition having a pH in the range of 1 to 6 and comprises c) one or more ammonium salts of the formula NH4+Y−, where Y− is an anion except for OH− and CO32-. The total concentration of oxidizing agents in composition B is 1% by weight or less, preferably 0.1% by weight or less, calculated to the total weight of composition B. Composition B may be free of oxidizing agents.

Dependencies are inferred from the claim text.