It’s clinically proven to control flaking, scaling, and itching. Nizoral is different because it doesn’t just address the symptoms, it gets right to the root of dandruff as it kills the fungus that causes it. Nizoral is the only over-the-counter dandruff shampoo with Ketoconazole 1%, a clinically proven, powerful dandruff-fighting ingredient. Get freedom from dandruff with Nizoral! Product Benefits: Eliminates Stubborn Dandruff • Nizoral is the only over-the-counter dandruff shampoo with Ketoconazole 1%, a clinically proven, powerful dandruff-fighting ingredient.