GHK Cu for Skin: SIGNAL's Guide to Rejuvenation GHK Cu, the copper peptide, is a game changing injectable for radiant skin and so much more Here's what it can do: Boost collagen for smoother, firmer skin Anti aging GHK Cu Peptide Therapy Connecticut Skin Rejuvenation Benefits Ellis Have you heard of GHK Cu? It's a copper peptide your body actually makes on its ownand it plays a big role in how your skin repairs and heals. As we