Perhaps the most commonly asked about question when it comes to GHK Cu is THE BURN. Let's learn! @summitrejuvenation GHK Cu Peptide Benefits (And a Few Risks) Explained GHK Cu for Skin: SIGNAL's Guide to Rejuvenation GHK Cu Troche Strive Pharmacy You started using a GHK Cu peptide serum on your face and now , The things no one tells you., Yes, the injections can hurt like a bitch. , Heres the thing Ive found it works even better topically, If you're using GHK Cu and it stings a little (which is common) this one's for you In this reel I'm sharing the small tweaks that have helped me make peptide injections