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 Stabilization of a Cu binding site by a highly conserved tryptophan residue ScienceDirect Reducing Redness & Inflammation with GHK Cu Copper Peptides Vitali Skincare GHK Cu Copper Peptide Shampoo Ion Peptide Sublingual GHK Cu TruHealth Physical Therapy