I have ester C, I take it with the zinc. It definitely helped.
Doversh, I have no doubt this pharmacy is making great stuff for dandruff and other things. I just wanted to comment about the notion that people have that “natural” means safe to use. Raw milk from the cow is also natural, and people died from drinking it before it was pasteurized. Marijuana is also natural, as is opium, etc. etc. You get the idea. Just because something is natural does not = harmless. Just a caveat to all. We always need to check out product safety before use.