Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000 Blue Copper Peptide Ghk Cu 99% Care Ghk Cu 50mg 100mg vials Cosmetic Ingredient GHK GHK CU and blue copper That deep blue color? , Thats how you know its real copper peptide., DBH Copper Peptide isnt diluted, watered down, or toned back. That rich blue hue signals a high, active concentrationthe kind GHK Cu 50mg Copper Peptide