Helps prevent recurrence of flaking and itching associated with dandruff. Moisturizes to relieve dry scalp and itch. H&S HydraZinc formula relieves scalp dryness, itch, irritation and helps prevent flakes. Dry scalp care and extra hair conditioning: Double-duty formula cleans and hydrates hair and scalp, with extra conditioners in one easy step. pH balanced for everyday use - even for permed or color-treated hair.