Copper is a trace mineral that is essential for bone health, connective tissue health, cardiovascular health, lipid metabolism, neurological health, and skin health. It's also a component of the antioxidant enzyme superoxide dismutase. Because copper and zinc compete with each other for absorption, an individual taking a high amount of zinc (for example, 50 mg daily for an extended time period) can develop a copper deficiency. A copper deficiency can render many cell types, including fat cells and blood cells, more susceptible to oxidation. For this reason, zinc supplementation should be accompanied by copper supplementation. In a clinical setting, copper supplementation protected red blood cells from oxidation. Thorne's Copper Bisglycinate provides an optimally absorbed form of copper.

This product has been third-party tested and certified to verify what's in the package matches what's on the label and to confirm it contains no unsafe levels of contaminants, such as heavy metals, pesticides, and microorganisms.