No. 1 derm reco. Pyrithione zinc dandruff shampoo + conditioner. Hydrates and cools for scalp relief. Infused with tea tree oil. Up to 100% flake free (visible flakes; with regular use) 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). Proven Protection: Flakes (associated with dandruff). Itch (associated with dandruff). Oil (washes away oil & flakes). Dryness. 1. Rich lather - leaves scalp and hair 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. Questions (or comments)? 1-800-723-9569. Made in USA of US and/or imported ingredients.