The GHK Cu Peptide: Benefits, Uses, and Why it's Known as the Regenerative Copper Complex GHK Cu Peptide Foundry Premium Research Peptides GHK CU 50mg True Form Peptides GHK Cu is a copper peptide used in regenerative medicine to support collagen production, tissue repair, and cellular renewal throughout the body. It's for individuals looking to improve skin firmness, brightness, and visible GHK Cu Organic Serum Copper Peptide for Anti Aging & Skin Repair GHK Cu 100mg (10 vials)