Selerex Anti Dandruff Shampoo is a medical-grade hair care product containing Selenium Sulfide as its active ingredient. This specialized formula targets the root cause of dandruff to effectively control and prevent flaking, itching, and scalp irritation. The shampoo contains Selenium Sulfide which is a proven anti-dandruff ingredient that works by targeting the source of dandruff formation. The product comes in a 200ml bottle and is manufactured by Unirex. As this is a medical-grade product, it should be used as directed for best results in controlling dandruff symptoms.