Essential GHK Cu Serum: What It Is, How It Works, and Why It Matters f Bacteriostaticwater.com Ozark Have you heard of GHK Cu the copper peptide your body is already making? GHK Cu (Glycyl L Histidyl L Lysine Copper) is a naturally occurring tripeptide found in human plasma, saliva, and urine. GHK Cu: The Regenerative Peptide for Skin, Hair, and Healing Pulse & Remedy Molecular crystal structure of the tripeptide GHK Cu. In solution, Download Scientific Diagram The potential of GHK as an anti aging peptide