Reviving this thread: I bought a zinc test liquid. The liquid is a a zinc solution in distilled water and you put it in your mouth. If it tastes metallic, that means you have good zinc levels. If it tastes like hydrogen peroxide, or even worse like water, then you have low zinc levels.Well I failed it. It tasted like hydrogen peroxide to me. I started supplementing with zinc (the same kind that is used in ZMA, but not ZMA itself) and I noticed it cleared some minor acne issues I was having.Something to consider for the rest of you.
What type of Zinc do you take?