Ghk Cu Intra Nasal Spray 50 mg 0.34 oz. Westend Medical Supply GHK Cu Peptide Therapy: The Definitive Clinical Guide to Gene Modulation, Protocols, and Efficacy Subcutaneous Injection Sites and Instructions for Safe Self Administration WO2019167070A1 Topical copper tripeptide composition and process of preparation. Google Patents 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