Glow Peptide Protocol GHK Cu, BPC 157, TB 500 Neurogan Health If you've ever felt lost trying to reconstitute GHK Cu, this one's for you. I walk you through how I prep it step by step, including transferring it to a larger vial., Think of this as a lab day at GHK Cu (copper peptide) used topically is one of the most well studied skin repair peptides. Here's how it helps the skin, in practical terms: 1. Boosts collagen & elastin GHK Cu signals your skin GHK cu Peptide Warehouse