L'Oreal Technique Oreor Developer | Hair Color Developer | Creamy Formula for Uniform Color and Bleach Results | 40 Developer | 16 Oz.

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.