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 One of my personal favorite peptides: GHK Cu (Copper Peptide) I've been using this one consistently and I absolutely love what it does for skin health, healing, and overall cellular repair. GHK Cu is NL GHK Cu in reducing pain and inflammation of the body Synthagen PL GHK Cu vs NAD+: Which Longevity Peptide Should You Take or Stack?