Abstract: The present invention relates to an aqueous composition and a method of levelling hair color especially the hair lighter colored or including lightened streaks or bleached streaks or bleached as a whole and after certain period of time contrast-difference in color-between the re-growth and formerly lightened parts is clearly visible. Compositions comprising (1) at least one fatty acid salt, (2) an in-situ formed ammonium or substituted ammonium salt and (3) one or both of (a) cationic or cationizable surfactants and (b) a quaternary ammonium surfactant.