GHK Cu might be trending, but its not new., Before you inject yourself with this viral peptide, consider this., This copper peptide has been studied for years in skin repair and collagen signalling, 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 Conformational restriction blocks glutamate receptor desensitization Nature Structural & Molecular Biology Frontiers Exploring the beneficial effects of GHK Cu on an experimental model of colitis and the underlying mechanisms