Head and Shoulders original Classic Clean Dandruff Shampoo fights dandruff with a unique Hydrazinc anti-dandruff formula that moisturizes dry scalp, calms itchy scalp4, and keeps hair looking great. Why choose Head and Shoulders? If youƒ??re still seeing flakes with your current product, try the dandruff treatment dermatologists recommend most: Head and Shoulders. Our clinically-proven formula fights flakes better than typical anti-dandruff shampoos (6). Head and Shoulders has been proven effective in over 200 clinical tests, making it the most tested and most trusted5 dandruff shampoo in the world. A great dandruff shampoo should do more than fight flakes. Because healthy hair is important, Head and Shoulders infuses every shampoo with essential beauty shampoo elements, like rich moisturizers and fantastic fragrances. Our products are always tough on dandruff, but gentle on hair. Thatƒ??s why Head and Shoulders is the #1 selling dandruff shampoo in the world (5). Try the full line of Head and Shoulders products: From dry scalp to itchy scalp, dry hair to oily hair, and from a gorgeous green apple scent to handsome Old Spice freshness, Head and Shoulders has a version thatƒ??s right for you. Explore our full line of shampoos, 2in1s, conditioners, and hair and scalp treatments. (1) based on a 2013 survey of U.S. dermatologists. (2) visible flakes, with regular use (3) satisfaction guaranteed. Mail product and receipt for a refund via prepaid card. Valid 1 year from purchase. Call 1-800-843-3543 for details. (4) associated with dandruff, with regular use (5) PandG calculation based on Nielsen sales information July 2013 - June 2014 (6) vs. competitor anti-dandruff shampoo with 1 percent Pyrithione zinc #1 Dermatologist recommended dandruff brand (1) Clinically tested. 100 percent Flake Free (2) Guaranteed (3). Fights dry scalp, calms itchy scalp, and relieves irritation (4). Specially designed for use with HandS Classic Clean dandruff conditioner. Gentle and pH balanced for daily use on all hair types, even on color or chemically treated hair Most Tested and Most Trusted Dandruff Shampoo in the world (1) World's #1 shampoo (1) Dandruff shampoo for all hair types. Size: 33.8. Gender: Unisex.