Neutrogena T/Gel® Anti-dandruff Scalp Relief Shampoo starts to fight dandruff from the first wash. Our highest concentration, extra power formula is clinically proven to help relieve, reduce and prevent your dry, itchy* flaky scalp. 100% showed improvement in dandruff and scalp dryness**. Use 2-3 times a week to leave hair and scalp looking and feeling clean. *Itch due to dandruff **Clinical grading, after 6 weeks of regular use, 66 participants