GHK Cu Copper tripeptide (1% solution) Sapolita The tripeptide GHKCu complex ameliorates lipopolysaccharideinduced acute lung injury in mice Oncotarget GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B 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, GLOW Peptide 99%+ Purity Same Day Shipping