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GHK-Cu is a small, naturally occurring copper peptide a chain of three amino acids (glycine, histidine, and lysine) bound to a single copper ion

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Glycine helps keep this pathway active even when calories are reduced

USADA and other anti-doping organizations have spent years warning athletes about the potential legal and eligibility risks of using unapproved substances whether via prescription drugs or unvetted supplements while also articulating the health risks for elite athletes and others looking to gain a small advantage in the gym