METHOD FOR LIGHTENING OR DYEING IN THE PRESENCE OF AMMONIUM (BI)CARBONATE AND A BASE, AND DEVICE

摘要

The present invention relates to a method for lightening or dyeing keratinous fibers, in the presence of an oxidizing agent, characterized in that a formulation obtained after mixing the following compositions (A), (B) and (C): (a) an anhydrous cosmetic composition (A) comprising one or more fatty substances and one or more surfactants, (b) a cosmetic composition (B) comprising the combination of ammonium (bi)carbonate and one or more organic or inorganic bases or one of its/their salts, and (c) a cosmetic composition (C) comprising one or more oxidizing agents and one or more fatty substances; the content of fatty substances in the formulation being at least 35% by weight, with respect to the total weight of this formulation is applied to said fibers. The present invention also relates to a three- or four-compartment device.