Intensifies lightening power in tone-on-tone colors without ammonia. Optimize gray coverage. Avoid oversaturations in midtones. Easy to mix and use. Thanks to its specific components, a more agile and effective oxygen release is achieved, the way to raise the tone of natural hair to tone and medium. Main formulation Olealkonium chloride: Oxygen release regulator that increases the effectiveness and speed of the developer, to achieve a higher level of erasure of the natural pigment of the hair in tone-on-tone colorations without ammonia. How to use Mix it with the chosen Soft Color tone at the recommended ratio.