This laboratory-tested, gentle cleanser stops dandruff while controlling scalp dermatitis and mild psoriasis. Featuring our unique combination of FDA compliant dandruff-control ingredients plus nourishing essential oils of Rosemary, Olive and Jojoba, this medicated cleanser soothes, heals and moisturizes while it eliminates flakes and itchiness. MSM (methylsulfonylmethane) rebalances and conditions the scalp to prevent future dandruff.