GHK Cu vs NAD+: Which Longevity Peptide Should You Take or Stack? The peptide GHK CU has been shown to modulate thousands of genes, including a number of very prominent pain related genes. Multiple animal studies demonstrate that GHK administration reduces pain sensitivity, pain aversion, Suppstance The reviews are in and GHK CU is changing the game. From athletes recovering faster to everyday members saying goodbye to joint pain and Instagram Mitigating GHK Cu Injection Pain: Tips and Tricks Gabriel Alizaidy, MD, MS posted on the topic LinkedIn