This Wella SP Color Save Infusion is a color protecting customizable treatment. Combined with any Wella SP mask, the SP Color Save Infusion adds long-lasting color protection and increases colour brilliance. How to Use: Add one single-dose of Infusion (5ml) to 25ml of SP Mask. Mix together evenly. Apply on toweled dried hair. Leave on for 5-10 minutes. The effect will be intensified with heat. Rinse out thoroughly.