Definitive Guide on Peptides for Skin and Hair Care Infusion Clinic ABQ Tripeptides Ghk and GhkCu modified silver nanoparticles for enhanced antibacterial and wound healing activities ScienceDirect GHK Cu Peptide Skin Cream Levers.Health Why Peptides are the "Master Key" By age 60, body's natural levels of GHK Cu (the Architect molecule) drop by a staggering 60%. This is why midlife skin often feels like it's lost