If your GHK injection site gets irritated try this 1. Dilute it by adding more water to the syringe 2. Let it sit until it reaches room temperature Also, make sure you're GHK Cu vs NAD+: Which Longevity Peptide Should You Take or Stack? If your GHK injection site gets irritated try this , 1. Dilute it by adding more water to the syringe , 2. Let it sit until it reaches room temperature , Also, make sure youre rotating injection Unlocking the Secrets of GHK Cu: The Revolutionary Peptide for Youthfu