Denorex Extra Strength Medicated Dandruff Shampoo and Conditioner helps relieve the symptoms of dandruff, seborrheic dermatitis, and psoriasis. Gentle enough for regular use, this 2-in-1 shampoo and conditioner is formulated with 3% salicylic acid, which works to prevent the recurrence of moderate itching, flaking, and scaling. The vitamin-enriched dandruff shampoo and built-in dandruff conditioner duo works immediately as it cleans and moisturizes your hair, leaving your locks feeling healthy and hydrated.