Still injecting in the same spot every time? Read this. Where you inject your peptides can actually affect absorption, comfort, and results. Quick guide: Abdomen: fastest absorption Upper arms Neurogan GHK Cu (Copper Peptide) Neck & Face Serum Global Ubuy Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum Jumbo Size And we're back with our GHK Cu peptide injection pen. Here's how to use it, and where. More coming soon ;) #ghkcu #ghkcucopperpeptide #peptides