Redken Pro-Oxide 20 Volume/6% Developer Redken Pro-Oxide Volume 20 Developer design to use with Redken color and selected lightener brands. This professional product has super smooth consistency which allows easy mixing and application. Redken Pro-Oxide Volume 20 Developer lightens up to 2 levels and provides predictable performance for covering white or grey hair. Benefits & Features Provides a predictable performance for all types of applications Lightens up to 2 levels Recommended for coloring white and grey hair Hypoallergenic and free of fragrance Contains emollients and conditioning agents to help even out porosity Stabilizes to ensure steady lightening and coloring Creamy consistency makes mixing and application easy Directions For use with Redken Color Fusion, Redken For Men color Camo and all Redken Lighteners as directed. Mix with a Color Fusion in a 1:1 ratio with 10, 20, 30or 40 vol. Pro-oxide Cream Developer for up to 4 levels of lift. Can then be applied with a bowl and brush or bottle using a Traditional or Modern Virgin Application. Apply color generously using fine 1/4" diagonal partings. Cross-check application. Process at room temperature for 35-45 minutes. For Professional use only.