Isdin Psorisdin Antidesquamative Treatment Shampoo eliminates flaking and reduces redness. Especially indicated for people with psoriasis, keeping the scalp in good condition, helping reduce the need for pharmacological treatments.. Thanks to its ingredients, it eliminates flaking, reduces redness and relieves the itching that comes with flaking. Leaves hair soft and easy to style. The formula includes salicylic acid, Ichthyol Pale and Anti-itch Technology, ingredients that help regulate the scalp’s flaking process.