Close Blue Copper Peptides Ghk cu Powder Stock Photo 2682985955 Shutterstock 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 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 & Sensitive Skin 2oz The Blue Revolution: Why 1% Pure GHK Cu is the New Standard for Mature Pure & Cimple Close Blue Copper Peptides Ghk cu Powder Stock Photo 2682985977 Shutterstock