Head & Shoulders Clinical Strength shampoo tackles tough dandruff. This advanced oil control formula, crafted by the #1 dermatologist-recommended brand, delivers maximum dandruff protection. Powered by selenium sulfide, the shampoo starts working quickly to combat the root cause of dandruff while remaining gentle enough for everyday use. Clinically proven to relieve stubborn dandruff, it helps break the cycle of flakes while leaving hair refreshed with a pleasing scent.