Wella Color Charm developers are designed to be mixed with Color Charm permanent liquid and gel colors to give the best color results.
USAGE INSTRUCTIONS: Wella Color Charm developers also activate Color Charm Powder lightener.
Features and Benefits: For use with Color Charm permanent liquid and gel colors.
Ingredients: WATER/EAU, HYDROGEN PEROXIDE, DISODIUM PHOSPHATE, PHOSPHORIC ACID, SALICYLIC ACID