Frontiers Exploring the beneficial effects of GHK Cu on an experimental model of colitis and the underlying mechanisms GHK Cu for Skin: SIGNAL's Guide to Rejuvenation Before you decide to begin using the copper peptide, GHK Cu, be aware it stings and leaves behind big, red welts that then leave a lovely bruise. In order to reap the 'glow' GHK Cu Peptide Benefits for Skin and Hair LIVV Natural If your GHK injection site gets irritated try this , 1. Dilute it by adding more water to the syringe , 2. Let it sit until it reaches room temperature , Also, make sure youre rotating injection GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B