We are celebrating 50 years of GHK Cu, the powerhouse peptide that changed the way we care for skin. Discovered in 1975, this tiny copper peptide has been making a big impact GHK CU Copper Peptide Powder Blue Copper Peptide Powder CAS 49557 75 7 Cosmetic Grade, China GHK CU Copper Peptide Powder Blue Copper Peptide Powder CAS 49557 75 7 Cosmetic Grade Manufacturers, Suppliers, Factory Xi'an What Makes GHK Cu Copper Peptides Blue? GHK CU Color Vitali Skincare GHK Cu Formulation & Manufacturing Expert Guide Not all Copper Peptides are created equal If you've tried copper peptides before and saw no change, here is why: Concentration and Stability. Most serums use a diluted solution that barely scratches 99% GHK Cu Peptide Powder Cosmetic Grade Copper Tripeptide 1 (GHK Cu) Blue Copper Peptide GHK Copper Lyophilized Pure Powder