GHK Cu Cooper Peptide: The Complete Skin & Repair Guide (2026) Blue Copper Peptide Serum GHK Cu for All Skin Types Firms Skin, Shrinks Pores, Boosts Collagen for Youthful Appearance Modulation of Fibroblast Phenotype and Collagen Synthesis by GHK Cu in Prime Lab Peptides GHK Cu Peptides Benefits for Anti Aging Skin Rejuvenation How to Use With Micro Infusion GHK Cu is a copper peptide that plays a role in tissue repair and collagen synthesis. The result: improved texture, firmness, and overall skin quality.