Proven healthy hair & scalp. Pyrithione zinc dandruff shampoo. Purify scalp with a powerful clean. Infused with charcoal. Up to 100% flake free (visible flakes; with regular use) guaranteed. Proven Protection (Flakes, Itch, Oil, Dryness): 1) Refreshing Lather - leaves scalp and hair feeling airy clean. 2. Scalp Protection - From flakes (associated with dandruff), itch (associated with dandruff), oil (washes away oil & flakes), & dryness - Guaranteed (Satisfaction Guarantee: If you are not satisfied return this product with a proof of purchase for a refund via prepaid card. Call 1-800-843-3543 for further details). 3) Healthy hair -grows from a healthy scalp. No. 1 Dermatologist recommended. www.pg.com. www.headandshoulders.com. Made in U.S.A. of U.S. and/or imported ingredients.