Selerex Dandruff Shampoo is a medical-grade anti-dandruff shampoo containing Selenium Sulfide as its active ingredient. This specialized formula targets the root cause of dandruff to provide effective control and relief from flaking and scalp irritation. The shampoo contains Selenium Sulfide which is a proven anti-dandruff ingredient that works by targeting the underlying causes of dandruff. Being a medical-grade product, it is specifically formulated to provide therapeutic benefits for those suffering from moderate to severe dandruff conditions. The product comes in a 200ml bottle with clear usage instructions on the packaging.