What Is GHK Cu? The Trending Copper Peptide Everyone Is Talking About Parlor Beauty Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum People are searching for the GHK Cu pen. Ordering it online. Trying to figure out how to use it safely at home. We looked at all of that and thought: there has to Snapklik.com : Skin Perfection Copper Peptide Serum GHK CU 1% For Face & Hair Copper Peptides For Skin, Hair, & Scalp 1% Blue Liquid For Face, Neck, Body, Scalp Multi Use Serum Booster 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