GHK Cu Topical vs Injection Which is the Better Copper Peptide Form? GHK Cu Copper Peptide Benefits, Uses & Safety Intra V The GHK Cu pen works. But needles at home were never the answer. We took the same clinically backed copper peptide complex and put it into a serum you can use in 30 seconds, GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Mitigating GHK Cu Injection Pain: Tips and Tricks Gabriel Alizaidy, MD, MS posted on the topic LinkedIn