Mix in a nonmetallic bowl the necessary amount of powder according to the part to be decolorized with 6, 9 or 12 percent (20, 30 or 40 volumes) hydrogen peroxide cream until a thick, uniform cream is obtained that will be easy to apply (see recommended schedule). Do not exceed the recommended time. When the desired result has been achieved, emulsify with lukewarm water, rinse thoroughly and proceed with a wash. For professional use only.