Neurogan Health, GHK Cu Copper Peptide, Hair & Scalp Serum Amazon.com : AzulBotanicals Copper Peptide GHk Cu & Methylene Blue Infused Whipped Grass Fed Tallow Balm, Fine lines, Wrinkles, Eczema, Acne, Full body Moisturizer, For All Skin (3.4 oz) : Beauty & Personal Skin Perfection Ghk Cu Copper Peptide Powder 99.7% Pure Diy Ghk Powder to Make a Serum for Face Hair Scalp 1g 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 3 Ml 5 Ml 10 Ml Ghk Cu Vial Blue Copper Peptide Face Serum Anti Aging Moisturizing Repairing for Skin Care Serum