Clinically Proven Dandruff Relief—Now with a Fresh Scent Nizoral Anti-Dandruff Shampoo is a dermatologist-recommended solution made with 1% ketoconazole, a powerful ingredient that tackles the root cause of dandruff—fungus on the scalp. Clinically proven to relieve flaking, itching, and scaling, it’s 10X more effective at killing scalp fungus than the leading dandruff shampoo's active ingredient (based on lab testing). Perfect for all hair types, including color-treated and chemically processed hair, this gentle yet effective shampoo is used just twice a week to keep your scalp clean, healthy, and flake-free. The fresh scent leaves your hair smelling great, while the formula keeps dandruff at bay with minimal effort.