GHK Cu Powder Sample Spotlight The Blue Copper Peptide Game Changer Our lab grade GHK Cu powder isn't just a raw materialits the premium blue copper peptide your formulations need for next level skin Ward What make blue? . The blue color of GHK Cu is due to the copper ion mineral bound with the peptide. The binding occurs through the donation of electrons GHK Copper Peptide GHK Cu Tripeptide 1 GHK CU Copper Peptide Whipped Tallow Honey Balm with Methylene Blue HealthyDerm GHK Cu Blue Copper Peptide + Betaine Serum Wonderlini exquisite skincare