This Wella SP Clear Scalp Leave-in Lotion?provides regulating anti-dandruff care. Containing the Dermacalm Complex which effectively yet gently clears the hair and 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.