So after doing a bit of research, I'm beginning to believe what I thought was dandruff is actually a dry, flakey scalp. I've used Head and Shoulders, Selsun Blue, Paul Michelle stuff, and nothing has helped.
What do you guys recommend for dry scalps? I have very thick hair that suffers lots of heat treatment. (But that's under control with a conditioner. It's just my dry scalp that drives me nuts.)