GHK Cu Peptide: Hair Regrowth for Thinning & Alopecia GHK CU 50 mg LIVV 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 Crescent Chems Research GHK Cu (copper peptide) is a science backed anti aging compound that supports collagen production, skin regeneration, and overall skin health. Used in both topical serums and subcutaneous GHK Cu (100mg) 6ml Vial