Injectable GHK Cu: Beginner's Guide to Copper Peptide GHK CU 50mg Injection, Packaging Type: Vial at 5000 box in Nagpur ID: 2857617432691 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 Amazon.com: Skin Perfection Copper Peptide Serum GHK CU 1% for Face & Hair Copper Peptides for Skin, Hair, & Scalp 1% Blue Liquid for Face, Neck, Body, Scalp Multi Use Serum Booster with