GHK Cu is getting a lot of attention right now, and for good reason. This is not just a skin peptide. It's a copper binding tripeptide with documented effects on gene expression, collagen synthesis, What if your body already had a molecule designed for repair? GHK Cu is a copper peptide involved in skin regeneration, healing, and overall cellular health. For more trusted advice on peptides from GHK Cu G Lab Peptides The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline