GHK Cu Research Peptide: Collagen & Repair Models CHEATCODES GHK Cu (Copper Peptide) Lyophilized LeadWest Medical BACK IN STOCK GHK Cu 50MG is available again. A staple in peptide research for collagen, skin and regeneration studies. Limited stock order now before it's gone. #GHKCu #PeptideResearch #BackInStock # GHK Cu, commonly known as copper peptides, are found naturally within the human body where they play a vital role in skin repair and maintenance. Copper peptides support optimal skin function by helping GHK Cu, commonly known as copper peptides, are found naturally within the human body where they play a vital role in skin repair and maintenance. Copper peptides support optimal skin function by helping