Everyone's calling GHK Cu a miracle peptide But let's separate marketing from mechanism. GHK Cu isn't magic. It's a signal. A signal that: Supports tissue repair Modulates inflammation Enhances collagen + Glycation of type I collagen selectively targets the same helical domain lysine sites as lysyl oxidasemediated cross linking Journal of Biological Chemistry GHK Cu RetaEU GHK Cu (50mg) BASIX GHK Cu Peptidos Full article: Enzymatic cross linking of collagens in organ fibrosis resolution and assessment