L'oreal, Developer, 40 Volume (2 Sizes)
Beautiful, uniform color Rich, creamy formula Lifting action up to 4 levels For use with lightening products
L' Oreal Oreor 40-Volume Creme Developer mixes easily with chosen hair coloring product to provide permanent color change. Has a very strong lightening action without color 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.