Pyrithione Zinc. Restores a silky smooth look to dry fizzy hair. Improves hair & scalp health. Healthy Hair Starts From a Healthy Scalp: Advanced formula relieves scalp itch, dryness, irritation and helps prevent flakes while improving hair and scalp health. Restores Silky Smooth Look: Starts at the scalp to smooth each strand to calm dry frizzy hair; dual action formula cleans while providing extra conditioners for hair and scalp; Gentle and pH balanced for everyday use even on permed or color treated hair.