Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000 GHK Cu spotlight A copper peptide commonly discussed in research communities for its links to skin appearance, hair interest, and tissue support. At HelixPeptides, we keep things clean, simple, and research focused, with GHK Cu G Lab Peptides 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