GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B ReMed HydraPen (GHK Cu) Blue Copper Peptide Serum 2 x 5 ml Microneedling MorySkin Neurogan Health, GHK Cu Copper Peptide, Hair & Scalp Serum Pptido de cobre GHK GHK Cu Tripptido 1 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 What Is GHK Cu? Peptide Research By Bluewell Peptides