GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend GHK Cu Peptide: What It Does for Body Composition and Metabolic Health Reducing Redness & Inflammation with GHK Cu Copper Peptides Vitali Skincare 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