OK I've had seb. derm for a couple months now. I've been using Regenix. And it has helped a lot however now that it is colder. The Regenix is striping away my natural oil and making my hair dry and coarse. I want to use something more natural that doesn't have sodium lureth sulfate. Has anyone tried Giovannis tea tree shampoo. I think my seb. derm is going away because my hormones are now being balance from consistent meds. I just have very dry itchy scalp. What should I do?