Yidai peroxide This peroxide can meet the requirement of different coloring situation. It can make the natural pigment of the hair lighter. It wont oxidation because of the air influence. Usage: The proportion of the color and oxidation cream is one to one. ( Because of the different texture of the individuals, the time below is for reference) 3% (10VOL): Turn the white hair into black, from the lighter to darker. You can make the bottom color. The same class color has the recover effect. It costs around 20-25 minutes. 6% (20VOL): It can make the color lighter for one class, it costs 25-35 minutes 9% (30VOL): It can make the color lighter for two classes, it costs 35-45 minutes 12% (40VOL): It can make the color lighter for three classes, it costs 45-50 minutes