Head & Shoulders Men Ultra Hair Endurance Anti-Dandruff shampoo is fueled with high performance boosters to meet the hair and scalp needs of ultra demanding men. This anti-dandruff shampoo with caffeine will strengthen your hair to help it resist against premature hair loss due to dandruff and breakage. Use Head & Shoulders Men Ultra series shampoo for up to 100% anti-dandruff efficacy (visible flakes from a distance of 2 feet, regular use).