Psoriasis is a chronic skin disorder that affects the scalp, causing itching, flaking, irritation, scaling, and redness. There are several shampoos available to treat psoriasis, including those containing coal tar, clobetasol propionate, salicylic acid, zinc pyrithione, sulfur, calcipotriene, and blue lagoon algae. Some shampoos also contain plant-based ingredients like aloe vera, oat protein, and bergamot and Moroccan rosemary oil extracts. It is important to be gentle when using psoriasis shampoo and not to rub, scrub, or scratch the scalp. Some shampoos are available without a prescription, while others require a prescription from a dermatologist. It is recommended to speak with a doctor about the best hair care regimen for psoriasis.