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Biomed Res Int 12:2019 Chen C, Zhou M, Ge Y, Wang X (2020) SIRT1 and aging related signaling pathways

Almost all of GHK-Cus evidence is topical, in-vitro or animal

In contrast, our guide to natural peptides differentiates endogenous peptide biology from synthetic analogs

GHK-Cu is a naturally occurring copper-binding tripeptide that may influence hair follicle size, anagen phase duration, and follicular inflammation, but these effects are based on preclinical data only and have not been confirmed in human trials

GHK-Cu Copper Peptide Cream: What the Science Says , 50 years of research, the truth about skin penetration, and why formulation matters as much as the peptide

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