GHK Cu 50mg Copper Peptide 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 99% Copper Peptide Ghk Cu Powder 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 Amazon.com: Copper Peptide GHK Cu Beef Tallow: Grass Fed Blue Balm for Mature Skin Face and Body Moisturizer with Methylene Blue, Manuka Honey & Vitamin E Natural Skincare for Dry & Sensitive