GHK Cu Peptide Foundry Premium Research Peptides Ingredients Hairgenetix GHK Cu, AHK Cu & PDRN Peptides GHKCU is one of the most popular peptides out there and for good reason. Results are not instant, as it regenerates the skin form the inside out, and it also will awaken GHK Cu Copper Peptide Regeneration, Skin Renewal & Anti Age Snap 8 and GHK Cu Peptides: Synergistic Effects in Skin and Aging Research How GHK Peptide Works Signaling GHK acts as a switch for skin repair: Interacts with adenosine receptors reduces inflammation Activates MAPK ERK, PI3K Akt, TGF pathways Stimulates fibroblasts & keratinocytes boosts collagen, elastin