Helps prevent recurrence of flaking and itching associated with dandruff. Smoothes and shines dry frizzy hair. H&S HydraZinc formula relieves scalp dryness, itch, irritation and helps prevent flakes. Smooth hair that shines: Moisturizes scalp and conditions hair to the tips to calm frizz and smooth each strand. pH balanced for everyday use - even for permed or color-treated hair.