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 Perhaps the most commonly asked about question when it comes to GHK Cu is THE BURN. Let's learn! @summitrejuvenation What Is GHK Cu Peptide? The difference between our Copper Peptides and GHK Cu GHK Cu is one specific copper peptide molecule great for signaling repair and collagen support. Our Copper Peptide formula goes beyond just Peptide Therapy Black Tie Health