Redken Pro Oxide Cream Developer 30 40 vol 12% 1000 ml

Has a smooth consistency for easy mixing Provides predictable performance for all types of applications. How to use: Mix with Color Fusion in a 1: 1 ratio with 10, 20, 30 or 40 Volume Pro-oxide Developer Cream for up to 4 levels of lightening. It can then be applied with a bowl and brush or bottle using a traditional or modern virgin application. Generously apply color in fine 1/4 "diagonal divisions. Check application. Process at room temperature for 35-45 minutes.