Buy KLOW Peptide Blend (GHK Cu, BPC 157, TB 500, KPV) (80mg) 99% Purity GHK Cu (Copper Peptide) is a naturally occurring peptide in the body that binds with copper to support cell repair and renewal. As we age, our levels decrease and thats where supplementation or Frontiers Exploring the beneficial effects of GHK Cu on an experimental model of colitis and the underlying mechanisms Is it necessary to cycle on and off of every peptide? The answer may not be as simple as you think, and it depends on *why* the peptide is being used. The GHK Cu: The Peptide That Supports Healthy Aging GHK Cu (copper peptide) is naturally occurring in the body and plays a role in supporting skin health, collagen production, and tissue repair. As I ran GHK Cu for 12 months so you dont have to (here are the results)