✨ Dandruff? Not on our watch! ✨ Safe for color-treated and chemically processed hair. Contains 1% Ketoconazole, the only OTC dandruff fighter. Outperforms leading brands in lab tests. Targets and kills the fungus causing dandruff. Clinically proven to control flaking, scaling, and itching. Ketoconazole 1% Clinically Proven 7 Fl Oz Nizoral Anti-Dandruff Shampoo is a clinically proven solution designed to combat dandruff at its source. With a powerful 1% Ketoconazole formula, it effectively eliminates the fungus responsible for flaking and itching, while being gentle enough for all hair types, including color-treated hair. Use just twice a week for a clean, fresh scalp.