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 What Are the Benefits of GHK Cu Peptide for Anti Aging Skincare? WO2019167070A1 Topical copper tripeptide composition and process of preparation. Google Patents Definitive Guide on Peptides for Skin and Hair Care Infusion Clinic ABQ