selenium sulphide, dimethicone, and dihydrogenated tallow phthalic acid amide.
Selsun is a medicated anti-dandruff shampoo designed to treat and control dandruff by addressing its main cause—fungal growth on the scalp. Its key ingredient, selenium sulphide, works to minimize flaking, itching, and excess dead skin. Combined with dimethicone and dihydrogenated tallow phthalic acid amide (Tab 2), it also conditions the hair, keeping it smooth, manageable, and healthy. Using it twice a week at first, then shifting to maintenance use, helps keep dandruff from coming back.