GHK Cu is more than a skincare trend its a copper peptide involved in repair, regeneration, and cellular signaling., This peptide has been studied for its connection to collagen production, skin Synergy of GHKCu and hyaluronic acid on collagen IV upregulation via fibroblast and exvivo skin tests Jiang 2023 Journal of Cosmetic Dermatology Wiley Online Library Protein Lysine 6 Oxidase an overview ScienceDirect Topics Full article: Physicochemical characterization of native glycyl l histidyl l lysine tripeptide for wound healing and anti aging: a preformulation study for dermal delivery 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,