GHK Cu, a copper peptide, is a naturally occurring peptide made of three amino acids bound to copper that improves collagen production, wound healing, inflammation, and tissue repair. GHK Cu helps with: Amazon.com: Copper Peptides Serum for Face Peptides Collagen Renewal & Anti Aging Serum GHK Cu, EGF, Hyaluronic Acid,Collagen Anti Wrinkle, Firming, Moisturizing Korean Skin Care,25mL 0.88 Fl Oz : Beauty & Personal Care GHK Cu vs NAD+: Which Longevity Peptide Should You Take or Stack? My friend Andy Hnilo uses GHK copper peptides in his Alitura skin care line, which helped him recover with almost no scarring from a horrific car accident that broke his jaw in five GHK CU Cosmetic for Healthy Skin Aging and Wrinkle Support Pure Prescriptions