GHK Cu Copper Peptide for Hair Loss: Results, Mechanism, and What to Expect GHK Cu Peptides Benefits for Anti Aging Skin Rejuvenation How to Use With Micro Infusion GHK Cu (copper peptide) is a science backed anti aging compound that supports collagen production, skin regeneration, and overall skin health. Used in both topical serums and subcutaneous PDF) Effects of GHK Cu on MMP and TIMP Expression, Collagen and Elastin Production, and Facial Wrinkle Parameters