If your GHK Cu or MOTS C injection leaves welts and burns like a hornet, it's usually not the peptide it's the technique. A few small tweaks can turn a sting into almost GHK Cu Peptide The benefits, side effects, and more [2026] Molecular crystal structure of the tripeptide GHK Cu. In solution, Download Scientific Diagram GHK Cu (Copper Peptide) is a naturally occurring peptide in the body that binds with copper to support cell repair and renewal. As we age, our levels decrease and thats where supplementation or