GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Molecular crystal structure of the tripeptide GHK Cu. In solution, Download Scientific Diagram Copper peptides are everywhere in serums, scalp treatments, and influencer recommendations. But does the science actually support the hype? The answer: yes, with nuance. GHK Cu is a naturally occurring tripeptide found Researchers found that a GHK Cu delivery system boosted a key repair enzyme to 1.78x its normal activity measurably improving tissue rebuilding in a lab model. GHK Cu is a copper binding peptide studied