GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B 89030 95 5 GHK Cu Gly His Lys Cu Copper Tripeptide 1; Prezatide copper 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 GHK CU Apollo Peptide Sciences Neurogan Health, Copper Peptide GHK CU, 120 mcg, 60 Tablets iHerb