GHK Cu Topical Spray Wells Pharmacy Network GHK Copper Peptide GHK Cu Tripeptide 1 Many people are being told to inject peptides like BPC 157, GHK Cu, or TB500 right over the area of pain, thinking it will deliver the peptide directly into the injured tissue. Thats simply not true. Do you know what this little blue injection is? It's called GHK Cu aka the Glow Peptide I've always believed in peptides for skincare, but honestly I never thought about