GHK Copper Peptide GHK Cu Tripeptide 1 Topical GHK cu with Hyaluronic acid : r DIYaesthetics Topical or SubQ GHK Cu? Same molecule. Very different purposes. Topical you apply it on your skin. Think of it as feeding your skin from the outside. In a 12 week study of Glowyour way. Meet GHK Cu, our glow enhancing copper peptidenow available in both a luxe topical cream and an injectable option, personalized to how you want to elevate your results. This is the GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Copper Peptide Powder Diy Etsy