SELSUN is a brand of dandruff shampoo that is used to control and treat scalp conditions such as dandruff, seborrheic dermatitis, and psoriasis. The active ingredient in SELSUN shampoos is selenium sulfide, which works by slowing down the growth of skin cells on the scalp that can lead to flaking and itching. SELSUN shampoos come in a variety of formulations including medicated and non-medicated options, and they are available in different sizes and fragrances. The brand is known for its effectiveness in controlling dandruff and other scalp conditions, making it a popular choice among individuals who suffer from these conditions. It's easy to use, and the results are visible from the first use. With a focus on providing effective dandruff control, SELSUN is a well-known brand in the dandruff treatment category.