Clears and helps prevent flakes and scalp build-up. Controls the symptoms of dandruff, seborrheic dermatitis, psoriasis. Fragrance-free, 3% salicylic acid. Neutrogena® T/Sal® therapeutic shampoo is recommended by dermatologists to relieve itching and flaking associated with chronic scalp conditions such as psoriasis, seborrheic dermatitis and even common dandruff. The active ingredient is clinically proven to break down crusty, flaky scalp build-up, and continues to work for hours, even after shampoo is rinsed off. T/Sal's unique formula is fragrance-free, color-free, and preservative-free. It is specially formulated to leave hair clean and manageable, even with regular use.