Patent ID: 8388699

Claim:
A method of levelling colour of hair comprising at least two parts wherein one part being the part not closer to scalp which is artificially colour changed to a lighter colour by means of lightening and/or colouring and/or bleaching than the other part closer to scalp which is undamaged and has its natural colour, wherein hair is optionally shampooed and optionally towel dried and the part directly at the scalp is applied a composition resulting from mixing two compositions, A and B, prior to application, compositions A is aqueous composition and comprises at least one oxidizing agent and has an acidic pH, and composition B is an aqueous alkaline composition and has a pH between 8 and 12, wherein compositions A and/or B comprise at least one surfactant selected from non-ionic, anionic, amphoteric, cationic or cationizable ones, from a non-aerosol foamer vessel in the form of a foam and processed for up to 10 min, at a temperature between 20 and 45° C., and rinsed off from hair and hair is optionally dried.