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 Dr Jonas Programs GHK Cu Blue Copper Peptide + Squalane Wrinkle Smoothing Treatment Caps Wonderlini exquisite skincare GHK Cu Copper Peptide Supplement, 300 mcg per Serving, Liposomal Formula, 120 Ve eBay