Dandrene is a medicated shampoo that starts to work on contact, controlling itchy and flaky scalp conditions from the first use, thanks to its unique formula and active ingredients. Our advanced formula continues to work for hours even after it's rinsed off, and leaves the hair healthy and hydrated. Dandrene is recommended by dermatologists to effectively control chronic Scalp Psoriasis, Seborrheic Dermatitis, and even common Dandruff.