Mitigating GHK Cu Injection Pain: Tips and Tricks Gabriel Alizaidy, MD, MS posted on the topic LinkedIn A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend 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 GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum GHK Cu Peptide Progress: Week 3 Results