Reduces and helps eliminate scalp itching, flaking and scaling associated with dandruff, seborrheic dermatitis and psoriasis. Helps prevent recurrence of the symptoms of dandruff, seborrheic dermatitis and psoriasis. Denorex Extra Strength Dandruff Protection helps fight tough dandruff and helps keep it from coming back. Contains 3% Salicylic Acid to control tough dandruff, persistent flaking and stubborn itching. Vitamin-enriched for healthy, good-looking hair.