Everyone seems to be talking about GHK Cu right now but most people still don't understand what it actually does. GHK Cu is a naturally occurring copper binding peptide that has been studied for its GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B PSA] Albeit rare Copper peptide "uglies" are real and scary. Case report and looking for advices : r SkincareAddiction GHK Cu (50 MG) Sigma Compounds Four reasons this serum belongs in your routine. GHK Cu Peptides that firm and support collagen renewal. Barrier support to keep your skin healthy and resilient. No injection. No needles. No clinic visit.