Topically with ~20% DMSO (99% solution), 30% burned my skalp. Orally 1-2ml castor oil daily, I'll stick to 1ml as 2ml already caused bowel problems..
Plus 1.5mm dermarolling with Lithium every other week, once per week is a bit too much. Don't know if that nasty **** is even doing anything.
Also...