One of my favorite peptides is GHK Cu. It has made such a dramatic impact on my skin in just one cycle I've been shocked! It supports collagen, healing, and overall skin GHK Cu as a multifunctional copper peptide: synthesis routes, process engineering and emerging applications Systems Microbiology and Biomanufacturing Springer Nature Link GHK Cu for Hair Loss: Evidence, Safety, and UK Treatment Options Bolt Pharmacy Full honest & unfiltered experience with GHK Cu 1 month after completing a 12 week cycle: Weeks 12: No noticeable changes. Weeks 34: Skin rash (rib area) worsened. Weeks 56: Extreme dryness, flaking,