Copper Peptide Ghk Cu at 2250 piece Najafgarh New Delhi ID: 2858800157830 Peptide GHK CU Cream Concierge MD Pure Chemicals at Wholesale: China Wholesale Ghk Cu Products at Factory Prices Global Sources A GHK Cu face serum appears blue because the active ingredient, GHK Cu (copper peptide), is naturally a blue colored powder, meaning its inherent color transfers to the serum when mixed in; this blue hue