Most skincare works on the surface. GHK Cu works deeper as a biological signal that helps guide the body's natural repair processes. Research has shown its potential to support collagen production, tissue remodeling, Frontiers Exploring the beneficial effects of GHK Cu on an experimental model of colitis and the underlying mechanisms GHK Cu Injections Explained: WThe Peptide Effect Apple Podcasts Copper peptides explained what are the differences between copper peptides and GHK CU peptides? What they actually do for the skin in terms of repair and collagen, and what you can and cant mix