GHK Cu Copper Peptide Collagen Boost & Skin Regeneration Calibrate Hydration What is GHK Cu and Why is Everyone Talking About It? GHK Cu (Copper Peptide) is a powerful, naturally occurring compound in the body that plays a key role in skin health I'm never one to jump on the wellness trend bandwagon, but I think peptides are a category of their own. From what I've researched, the benefits outweigh the side effects (if any!) 89030 95 5 GHK Cu Gly His Lys Cu Copper Tripeptide 1; Prezatide copper Amazon.com: Skin Perfection GHK Cu Copper Peptide Powder 99.7% Pure DIY Copper Peptides Serum for Face and Scalp Cosmetic Grade GHK Cu 1 Gram Creates Up to 100ml for Fuller Hair and GHK Cu Copper Peptide for Hair Loss: Results, Mechanism, and What to Expect