Wella Koleston color developer is a cream designed to be mixed with Wella Koleston Single hair dyes. At 20 Vol, it is used to dye dark hair at the same depth of color or to slightly lighten black and brown hair.

Before use, mix it with the hair dye according to the dye’s instructions. Do not apply it directly to the hair or skin. It contains hydrogen peroxide. Use only with a Wella hair dye or lightening product. Not intended for children. Avoid contact with the eyes and wear suitable gloves. If it comes into contact with the eyes, rinse them immediately and seek medical advice. Store in a cool place, away from heat and light.

• Form: Cream
• Strength: 20 Vol
• Volume: 60 ml
• Compatible with: Wella Koleston Single hair dyes
• Contains: Hydrogen peroxide