Amazon.com: LUMORA GHK Cu Copper Peptide Face Serum Advanced Skin Firming & Rejuvenating Serum for Collagen Boost, Smoother Skin & Complexion Renewal 1 fl oz : Beauty & Personal Care GHK Cu Peptides Benefits for Anti Aging Skin Rejuvenation How to Use With Micro Infusion GHK Cu vs NAD+: Which Longevity Peptide Should You Take or Stack? GHK Cu Peptide: Hair Regrowth for Thinning & Alopecia I've been getting a lot of questions about GHK Cu, so here's a quick breakdown. GHK Cu is a copper peptide that naturally occurs in the body and plays a role in skin repair