My GHK Cu Injection Journey: Youthful Skin, Collagen & Hair Growth Glow Ghk Cu 70mg Peptide Injection Pen at 14160.00 INR in Indore Cvs Biotech Pvt. Ltd. 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 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