A friend of mine recommended this product to me and gave me a small sample. I typically have moderately severe psoriasis, and I'm always super self-conscious about how it looks, especially around my scalp where I can't really hide it with clothing. After using this product, I immediately felt like my psoriasis had calmed down. There was less redness and a lot of the scales had been removed by the shampoo. After a few uses, my psoriasis around my scalp was as close to cleared up as it has ever been. I immediately bought myself a bottle and have used it ever since, two or three days per week. I can't recommend Sal shampoo enough to anyone suffering from scalp psoriasis. This really does work!