L'Oreal Technique Oreor 40 Volume Developer - Hair Color Developer, Creamy Formula For UniForm Results, Combine With Color of Your Choice, 16 Fl 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.