50mg GHK Cu Vial Blue Copper Peptide Face Serum Age Aging Moisturizing Repairing for Skin Care Serum Facial Care Kit d GHK Cu Blue Copper Peptide Serum GHK Cu Blue Copper Peptide Face Cream 4% 2400mg Night Moisturizer Anti Aging eBay ReMed HydraPen (GHK Cu) Blue Copper Peptide Serum 2 x 5 ml Microneedling MorySkin One of my patients has shared this picture with me as she felt it was odd that this peptide had this very vivid blue colour, while her other peptides had a clear