This Wella SP Balance Scalp Energy Serum is a daily nutrient for stronger & thicker hair. Its is formulated with Zinc Pyriothon Complex that delicately balances & soothes sensitive scalps, also strengthen thin hair & make it stronger in order to reduce hair loss. This Patented formula can reduce hair loss by up to 50%* *related to congenital hair loss. Directions for use: Apply small amount & massage gently into the scalp. Do not rinse out. Use 3 times per week. In the case of acute hair loss use daily.