Joico Duo Light Tonal Creme Lightener Copper

How to mix: Mix 1 part Duo Light to 1 part 10 Volume or 20 Volume Veroxide only Quantity of Veroxide may be varied to achieve desired consistency. Application & Timing: Always perform a patch test Process for 25-30 minutes without heat until desired lift and deposit is achieved. Rinse for 4-5 minutes with very warm water. Apply shampoo on scalp and gently shampoo twice. Condition. Useful Tips: Not recommended for use on clients with 25% or more gray hair. Duo Light is not intended for use on clients with previously lightened hair. Do Not use 30 or 40 Volume Veroxide.