Head & Shoulders Pro-Expert 7 Stubborn Dandruff Anti-Dandruff Shampoo is enriched with tea tree oil and has the highest concentration of our anti-dandruff active ingredient. The formula combats seven scalp problems, provides complete scalp protection and has been clinically tested. At the same time, the formula cleanses and balances the scalp. Use daily for best results. Visible dandruff with regular use, itching due to dandruff with regular use, hair retention due to improved scalp condition.