Thinking about GHK CU (Copper Peptide)? Heres what to actually expect week by week. , This isnt a quick fix its a slow burn that transforms your skin from the inside out. Collagen, elastin, GHK Cu (100mg) Research Peptide Kindred Aminos GHK CU File:Tropocollagen cross linkage lysyl oxidase (EN).svg Wikimedia Commons GHK Cu 100mg Copper Peptide Helix 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