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 Blue Copper Peptide (GHK Cu) Guide: Anti Aging Science, Formulation & OEM Blue Copper Peptide Ghk Cu 99% Care Ghk Cu 50mg 100mg vials Cosmetic Ingredient GHK GHK CU and blue copper Skin Perfection GHK Cu Copper Peptide Serum Booster, 1 Percent Blue Liquid For Face, Neck, Body, Hair, And Scalp, 0.5 oz Walmart.com The Power of Blue: Why GHK Cu Is the Unsung Hero of Youth Let's talk about the blue magic no one's talking enough about GHK Cu peptide (that gorgeous blue serum you've