The #1 Dermatologist Recommended Brand, delivers our Maximum Dandruff Protection. Powered by 1% selenium sulfide, this unique formula starts working 2X faster to fight the main cause of dandruff.* Head & Shoulders Clinical Strength Cooling Itch Relief Shampoo is Clinically proven to relieve stubborn dandruff itch. Still gentle on scalp, you can use this formula every wash, and break the cycle of stubborn dandruff.**