GHK CU C2 Peptides Let's talk sciencespecifically peptide science, and even more specifically GHK peptide science GHK Cu (GHK Cu peptide) is one of the most researched biomimetic peptides in skin health, known for its ability to GHK Cu (50 MG) Sigma Compounds GHK CU Copper Peptide, Face Serum, 1 oz (30 ml) Blue Copper Peptide (GHK Cu) Guide: Anti Aging Science, Formulation & OEM GHK Cu is a naturally occurring copper binding peptide that plays a major role in tissue repair and remodeling, with a strong focus in research on skin and hair biology. It works by signaling