A method for providing a gray hair, Chemical and / or staining power of the hair under the effect of an energy stimulus or a constant amount of a composition which can exhibit a change in the decoloring power (100) is exposed to said stimulus, and those each of the other fraction phase includes different staining force of hair or the amount of at least two fractions having a bleaching force the stage in the obtaining step (1000 and 2000), Composition (100) is exposed to a stimulus before or after brought into contact with the hair, the composition provides a method of providing a dyeing or bleaching of shade after being brought into contact with the hair is exposed to the stimulus.髪に濃淡をもたらすための方法であって、化学的および/またはエネルギー刺激の効果の下で髪の染色力または脱色力の変化を示すことができる一定量の組成物(100)を前記刺激にさらして、各々が他の画分のものと相異なる髪の染色力または脱色力を有する前記量の少なくとも2つの画分(1000、2000)を得るステップにある段階を含み、組成物(100)は髪と接触させられる前または後に刺激にさらされ、組成物は前記刺激に暴露され髪と接触させられた後に濃淡のある染色または脱色をもたらす方法を提供する。
