Fights itchy flaky scalp Neutrogena T/Gel Shampoo is effective as a therapeutic treatment to help control the scalp itching and flaking symptomatic of scalp psoriasis, eczema, seborrhoeic dermatitis and even common dandruff. Clear, amber T/Gel is pleasant to use and gentle to your hair. T/Gel is uniquely formulated to have a pleasant fragrance, the rich lather helps treat itchy, flaky scalp, and leaves hair clean, soft and manageable.