GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
Packaged in the USA by a family owned and operated company since 1968.
During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.
L-OptiZinc® is a form of zinc complexed with the amino acid methionine. Research has demonstrated this product to be better absorbed and retained longer compared to several other forms of zinc tested.* L-OptiZinc® is a registered trademark of InterHealth Nutraceuticals Inc. Natural color variation may occur in this product.