3 Ml 5 Ml 10 Ml Ghk Cu Vial Blue Copper Peptide Face Serum Anti Aging Moisturizing Repairing for Skin Care Serum 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 Young Goose Blue Peptide Spray Copper Peptides GHK Cu Beef Tallow for Skin: Blue Balm with Methylene Blue, Manuka Honey & Vitamin E Natural Face and Body Moisturizer for Mature, Dry & Delicate Skin 2oz