People are turning themselves into lab rats': the injectable peptides craze sweeping the US Well actually The Guardian GHK Cu and Reproductive Health: Mechanisms, Fertility Benefits Fraley Whats the difference between GHK Cu (copper peptide) as a topical cream vs an injection? In this video I break down: What GHK Cu is and why its used in anti aging skincare What results The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline GHK Cu Copper Peptide for Hair Loss: Results, Mechanism, and What to Expect