Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000 Not all copper peptide serums are formulated the same Before you buy one, make sure you're actually getting pure GHK Cu at the right concentration not just a diluted blend. We spent 2 weeks in on GHK Cu and the glow is REAL. Brighter complexion More even skin tone Less breakouts Softer fine lines Thicker, fuller hair This is just Skin Perfection GHK Cu Copper Peptide Powder 99.7% Martinique Ubuy