Mountain Vitamins Zinc Glycinate is a high-quality supplement that is made with pure ingredients. It is non-GMO, gluten-free, and vegan. It is also third-party tested for purity and potency. Zinc Glycinate is a dietary supplement that contains zinc in the form of a chelate with the amino acid glycine. Zinc is an essential mineral that is involved in many bodily functions, including cell growth and repair, immune function, and wound healing. Zinc Glycinate is a well-absorbed form of zinc that is less likely to cause stomach upset than other forms of zinc supplements.