What is the best shampoo to cure scalp build up and dry, flaky scalp?

I use Selson (sp?) Blue myself. Use it once or twice a weekWhat is the best shampoo to cure scalp build up and dry, flaky scalp?
Nizoral. Works great.





I tried a tar-based shampoo years ago. It worked great, but the smell was so horrible that I just couldn't bring myself to use it anymore.What is the best shampoo to cure scalp build up and dry, flaky scalp?
head and shoulders...some of them actually smell good