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, Glow Ghk Cu 70mg Peptide Injection Pen at 14160.00 INR in Indore Cvs Biotech Pvt. Ltd. Copper Peptides Before and After: Visible Skin Improvements Explained Hubmed Before vs. after 3 months of GHK Cu peptide therapy smoother texture, more even tone, and skin that looks healthier overall. Small peptide, big difference