GHK Cu Copper Peptide & Methylene Blue Tallow Balm For Face And Body AzulBotanicals Most people think skincare works at the surface level. But healthy skin function starts much deeper than a temporary glow. GHK Cu is a naturally occurring copper binding tripeptide that is already found GHK Copper Peptide GHK Cu Tripeptide 1 GHK Cu Copper Peptide for Hair Loss: Results, Mechanism, and What to Expect