Copper

Copper appears in 19 commercial supplement products across 19 brands in this SuppDB sample, at per-serving doses ranging 0.035–3 mg. It is catalogued as a mineral ingredient, supplied in forms such as Copper Gluconate, Cupric Oxide, and Copper Citrate. Its NIH PubChem record lists molecular formula Cu, a molecular weight of 63.55 g/mol, and InChIKey RYGMFSIKBFXOCR-UHFFFAOYSA-N. Label reference values in the sample record a recommended intake of 0.9 mg and an upper safety limit up to 10 mg.