Color Tech colors consist of carefully selected pigments that will give a rich vibrant color and 100% coverage of gray hair. All Color Tech paints have a mixing ratio of 1:1.5 (eg 50 ml of Color Tech paint with 75 ml of Oxycream developer). Always apply the color to dry, unwashed hair. Leave it on for 30-35 minutes. Up to 45 minutes for the Superblonde tonal series. In most cases, Color Tech color allows the color to be applied along the length to the tips in the last 5 minutes of action. At the end of the hair coloring process, emulsify the color and rinse the hair well until the color is completely removed.