The GHK Cu pen works. But needles at home were never the answer. We took the same clinically backed copper peptide complex and put it into a serum you can use in 30 seconds, GHK Cu Copper Peptide Serum with Hyaluronic Acid Anti Aging Facial Serum, Deep Moisturizing & GHK CU COPPER PEPTIDES TABLETS The Beauty Doctrine Try GHK Cu Peptide Desert Mobile Medical #Skincare This peptide reverses aging, And its been hiding in plain sight for decades., GHK Cu (Copper Peptide) is one of the most researched anti aging ingredients out there., Heres what it does:,