What it is: Therapro Mediceuticals X-Folate Persistent Dandruff & Psoriasis Treatment Shampoo What it does: Therapro (X-Folate) Exfolate Shampoo for dandruff and psoriasis contains FDA approved formulations for treatment of common scalp and skin problems: Shampoo for treament of dandruff and psoriasis on the scalp Helps control flaking, itchy scalp Soothes inflammation and irritation of the scalp Safe for color treated hair and rinses 100% clean What else you need to know: Therapro X-Folate is the perfect psoriasis shampoo or dandruff shampoo.