A lot of people asked how I use GHK Cu (copper peptide) with a pen device, so here's a quick tutorial showing exactly how I do it. In this video I show how Molecular crystal structure of the tripeptide GHK Cu. In solution, Download Scientific Diagram How to Apply and Use GHK Cu and AHK Cu Hair Serum for Hair Regrowth Peptide Labz GHK Cu Copper Peptide: The Ultimate Peptide For Longevity Everyones chasing fat loss, meanwhile Ive been over here rebuilding my skin, my hair, and my recovery from the inside out., GHK Cu has quietly become one of the non negotiables in my routine