Description L’Oreal Oreor 40-Volume Creme Developer mixes easily with chosen hair colouring product to provide permanent colour change. Has a very strong lightening action without colour deposit. Use 40 Volume for lifting action up to 4 levels or for use with lightening products. The rich, creamy formula gives you easy application and beautiful uniform results every time. Directions: Mix in Oreor Creme 40 Volume Developer in amount recommended in chosen hair colouring Beautiful, uniform colour Rich, creamy formula
