Selsun Blue contains selenium sulfide and is specifically designed to fight dandruff and the recurrence of flaking when used regularly and itching associated with dandruff from the first wash. Selsun Blue 5 Replenishing Anti-dandruff Shampoo is formulated with a 5 ingredient intensive conditioning system, including the B Vitamin Panthenol and Vitamin E to moisturise the hair and scalp. For best results use daily to leave hair looking healthy and feeling clean, soft and manageable.