Copper Peptides Serum for Face 2% Copper Peptide with 4% Epidermal Growth Factor (EGF Serum) Niacinamide Ceramides Squalane & Hyaluronic Acid Multi 1% GHK CU Copper Tripeptide Serum w Hyaluronic Acid Niacinamide Planet Eden 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 GHK CU 30% SERUM Vici peptide