GHK Cu Peptide Dosing PeptidesPower 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 Uses and Benefits #ghk GHK Cu is a naturally occurring peptide in human plasma that declines with age. When used in injections (usually subcutaneous), it can offer various benefits: Skin Rejuvenation and Anti Aging: Skincare Copper Peptide GHk Cu & Methylene Blue Global Ubuy Rejuvenation and Youth with GHK Cu Peptide Treatment Dr. Ahmet zyigit