WO2019167070A1 Topical copper tripeptide composition and process of preparation. Google Patents Your body made this peptide every day until you turned 30. Then it stopped. GHK Cu (copper peptide) is a naturally occurring tripeptide discovered in 1973. At age 20, your plasma levels sit GHK cu 100mg Buy in Canada Advance Peptides Ghk Cu Peptide Administration Guide GHK CU 50 mg LIVV GHK Cu is a small copper bound peptide (glycyl histidyl lysine with a copper ion) found naturally in human tissues and fluids. Its levels decline with age, and it plays a role in tissue repair, regeneration,