My 12-year-old son has been struggling with scalp psoriasis for the last few years. We found a good solution in the combination of shampooing with Neem Tree Oil Shampoo (from Neem Tree Farms, which we read about in It Works For Me last year) and a prescription-strength salicylic acid shampoo, alternating each day. After using the salicylic acid shampoo over long periods, his hair weakens and becomes very thin, so I started looking for a hair strengthening shampoo to add to the mix. I found it in Nature’s Gate’s Biotin Strengthening Shampoo (sulfate free). But more than just strengthening his hair, the Nature’s Gate shampoo has completely controlled his psoriasis — there is no sign of it whatsoever on his scalp, and his hair has never looked healthier. Even better, he doesn’t need to use the salicylic acid shampoo at all anymore — he only uses the Biotin Strengthening Shampoo.