Head & Shoulders Citrus Fresh Anti-Dandruff Shampoo removes up to 100% of dandruff. Infused with lemon and citrus essence, it deeply purifies the scalp to tackle grease, oil, and dandruff flakes, leaving your hair with a citrusy smell. The clinically proven formula contains Piroctone Olamine, the active ingredient that fights dandruff-causing microbes. This powerful pH balanced anti-dandruff shampoo has a creamy texture, light and fresh scent, and is efficient on all hair types.