This peptide called GHK-Cu appears to trigger multiple skin-beneficial processes: it boosts collagen, elastin, and glycosaminoglycan production, supports the cells that build skin structure, and shows anti-inflammatory and DNA-protective properties. The research suggests it works through multiple biological pathways simultaneously, which could explain why it seems to improve tissue repair across skin, lungs, bone, and other tissues.

This was a review of existing genetic and biological research on the GHK peptide, analyzing what scientists currently know about how it functions at the molecular level rather than a new experimental study.

Funding not disclosed in abstract