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, How to Maximize GHK Cu Peptide Results with Micro Infusion Celebrity Esthetician Secrets No, were not actually injecting copper , GHK Cu is a peptide your body already makes (just less of it as you age). It binds to copper and helps signal repair., Why people are into it:, supports How to Inject Peptide Based Medications (Subcutaneous Method) Hone Health