The present invention relates to a method of levelling hair colour, especially lighter coloured hair or including lightened streaks or bleached streaks or bleached as a whole and after certain period of time contrast - difference in colour - between the regrowth and formerly lightened parts is clearly visible. The object of the present invention is 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 preferably undamaged and has its natural colour, wherein hair is optionally shampooed and optionally towel dried and the part directly at the scalp, preferably undamaged and preferably has its natural colour, is applied a composition resulting from mixing two compositions, A and B, prior to application, compositions A is aqueous composition and comprising at least one oxidizing agent and has an acidic pH, preferably between 2 and 5 and composition B is an aqueous alkaline composition and has a pH between 8 and 12, wherein composition A and/or B comprises at least one surfactant selected from non-ionic, anionic, amphoteric, cationic or cationizable ones, form a non-aerosol foamer vessel in the form of a foam and processed for up to 10 min, preferably between 1 and 8 min, more preferably between 2 and 7 min and most preferably between 2 and 5 min (all values are include) at a temperature between 20 and 450C, preferably at an ambient temperature and rinsed off from hair and hair is optionally dried.La présente invention porte sur un procédé dégalisage de la couleur de cheveux, en particulier de cheveux de couleur plus claire ou comprenant des mèches éclaircies ou des mèches décolorées ou globalement décolorés et dans lesquels après un certain temps un contraste une différence de couleur entre les racines et les parties auparavant éclaircies est cla
