Microlift Renewal Cream with GHKCu in Chicago Copper Peptide Collagen Cream at Better Med Spa Healthy skin works best when it's supported on every level.interested? Please Read GHK Cu main ingredient It's a copper peptide your body naturally produces when you're young. It plays a key role in 12 weeks in, and my skin has NEVER looked better! GHK peptides are doing their thing. Alright, I need to give you an updateit's been 12 weeks since I started using GHK Copper Peptides Serum for Face 2% GHK CU & 4% EGF Seraphime GHK Cu and Reproductive Health: Mechanisms, Fertility Benefits