Wella Koleston Perfect Creme Developer 6% 20 Vol. 33.8 oz (2 pack) by Wella
Wellexon Perfect peroxide specifically formulated for Wella permanent colours and brighteners.
HOW TO USE
- Mix the desired Wella color with the peroxide for a ratio of 1: 1 or 1: 2 depending on the shade chosen
- Apply on hair
- Process depending of color desired