GHK Copper Peptide GHK Cu Tripeptide 1 Your skin holds a protein called copper peptide and it naturally declines with age. GHK Cu, the star of our RenewMe program, works by replenishing that signal so your body remembers how GHK Cu = hype or real science?, Natural peptide, Declines with age, Strong lab data, But:, Topical = useful for skin and hair, Injectable = for injuries and inflammation , #GHKCu Reducing Redness & Inflammation with GHK Cu Copper Peptides Vitali Skincare