Mix Redken Color Fusion shades (including 12 Series) in a 1:1 ratio of color to Pro-oxide Developer. For example, mix 2 oz. (60ml) of Color Fusion with 2 oz. (60ml) of Redken Pro-oxide Developer.
Directions for Double Blonde:
Mix Redken Double Fusion - Double Blonde in a 1:2 ratio of color to Pro-oxide Developer. For example, mix 2 oz. (60ml) of Color Fusion with 4 oz. (60ml) of Redken 40-volume Pro-oxide Cream Developer.
Directions for Double Lights:
Mix Redken Double Fusion - Double Lights in a 1:2 ratio of color to Pro-oxide Developer. For example, mix 2 oz. (60ml) of Color Fusion with 4 oz. (60ml) of Redken 20-volume or 30-volume Pro-oxide Cream Developer.