I have very long hair and had a hard time finding a scalp treatment that would not take forever to wash out. I got a prescription for Dermasmooth from my doctor and love this product. It smells decent, washes out easily, and removes all of the plaques on my scalp with very little time commitment. The down side is that you need to have your doctor prescribe Dermasmooth. Also, if I stop using it, the scales and redness come back within a few days. Still, it is much more efficient and effective than anything else I have tried.