Wella SP Clear Scalp Mask is an intensive anti-dandruff treatment which effectively yet gently clears the hair & scalp of even the most stubborn dandruff. Clear Scalp Mask is formulated with Wella SPs exclusive Dermacalm Complex, which rejuvenates the scalp to prevent the formation of new dandruff whilst clearing the hair of stubborn flakes & irritation. Scalp tension & itchiness will be calmed & hair will be strengthened. To use: Distribute evenly through pre-shampooed towel-dried hair. Leave for five minutes. Rinse out thoroughly.