This Wella SP Clear Scalp Leave-in Lotion?provides regulating anti-dandruff care. Containing the Dermacalm Complex which effectively yet gently clears the hair & scalp of even the most stubborn dandruff while fighting the formation of new dandruff. It also prevents irritation of the scalp Directions for use: Apply directly onto scalp in pre-shampooed, towel-dried hair. Gently massage in. Do not rinse out.