A sulfate-free color protecting treatment mask  Formulated with exclusive IPN Technology & Zinc Gluconate  Helps deliver charged amino-ions to prolong the life of hair color  Strengthens hair with intense replenishment  Unveils softer, smoother & stronger hair with vibrant color  Great for color treated hair  To use: Apply to shampooed, towel-dried hair. Comb through with wide-tooth comb. Leave on 5 minutes & rinse well. Use once a week 