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.