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GHK-Cu Research Peptide (Copper Tripeptide-1) Research Use Only GHK-Cu Research Peptide Research Overview GHKCu (glycylLhistidylLlysinecopper) is a naturally occurring human tripeptide that forms a highaffinity complex with Cu ions

Altogether, these results suggest effects at the epithelial/mucinlipid interface rather than a primary lacrimal-secretagogue mechanism

Rhonda Patrick: And by the way, there have been studies looking at people that are deficient in vitamin D

doi:10.1164/rccm.201011-1874OC

Selenium deficiency impairs the glutathione antioxidant system even when glutathione levels are adequate [26]

It helps in the production of white blood cells, which are essential for fighting off infections and diseases