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, GHK Cu Injection Glow Peptide Injection: Revolutionizing Skin Rejuvenation Hubmed Ever heard of GHK Cu peptide? It's a naturally occurring copper peptide that helps repair tissue, stimulate collagen, and support skin healing. When used in injectable form, it works at a deeper level Subcutaneous Injection Sites and Instructions for Safe Self Administration