GHK Cu vs AHK Cu: Which Copper Peptide Is More Effective? Cosmecell GHK CU Super Facial Sunscreen SPF 50 PA++++: The Copper Pept Noninvasive and Efficient Peptide Delivery by a Novel Biocompatible Ionic Liquid ACS Sustainable Chemistry & Engineering 9 months of consistency with a protocol that works systemically, not superficially. This has included GHK Cu subcutaneous and topical, collagen, protein and an intentional lifestyle ticking off the essentials of sleep, training, Viral claim says GHK Cu reset nearly 4,000 genes to a younger state and increased collagen production in a preclinical study. This refers to research on GHK Cu, a naturally occurring copper binding peptide that In situ photo crosslinkable hyaluronic acid based hydrogel embedded with GHK peptide nanofibers for bioactive wound healing ScienceDirect