Discover Tone , the 3D professional tone-on -tone coloring by Vitality's . Over 60 color shades formulated with Swith-on technology for added brightness , tone and saturation . This tone-on-tone color without ammonia is delicate and does not lighten the base. Tone covers up to 70% of white hair and gradually fades over time, without creating a regrowth effect. Vitality's Laboratories have carefully defined the percentage of pigments in each shade for the purest tone-on-tone results. The creamy texture of Vitality's Tone coloring ensures perfect adhesion to the hair and a uniform finish . According to a study carried out in comparison with classic colorings, the colorings of the Tone line are on average 44% more resistant . Fall for Vitality's Tones hair color and indulge in pure, natural results.