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 GHK Cu 50mg vs 100mg: Which Concentration Should You Buy? GHK Cu Copper Peptide for Hair Loss: Results, Mechanism, and What to Expect Glow from within with GHK Cu Copper Peptide , This powerhouse peptide supports collagen production, skin repair, and hair follicle health, helping improve skin firmness, radiance, and support I ran GHK Cu for 12 months so you dont have to (here are the results) The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline