And we're back with our GHK Cu peptide injection pen. Here's how to use it, and where. More coming soon ;) #ghkcu #ghkcucopperpeptide #peptides Peptide Therapy for Hair Growth: Explore Your Options How to Maximize GHK Cu Peptide Results with Micro Infusion Celebrity Esthetician Secrets 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 GHK Cu Topical Cream