No shampoo works and I always wash my hair. I have very horrible dandruff no matter what I do. I constantly have to pick out the white flakes from the roots of my hair. Its kind of like around my hair my hair constantly scabs. I still get this with long hair but its less frequent with long hair, when I cut it for whatever reason that aggravates it a great deal. My hair looks smooth and clean but I still always have scalp issues.