I had the opportunity to test the products via smartson as a test pilot. I have long had a sensitive scalp with itching and flaking scalp. As a test pilot, I got to test the products for a shorter time, and it still feels a bit early to say whether the products actually help or not. I think they have definitely reduced the itching and flaking right after washing my hair with these products. This lasts maybe 2-3 days, but for me, who washes my hair every 5-6 days, I don't think it helps during this whole time. I can still feel that it itches now and then and also flakes. But definitely less than before. However, I have tested other products before that deliver the same results and that have been cheaper, so I don't know if I will continue to use these products.