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 How Often to Inject GHK Cu PeptidesExplorer GHK Cu Peptide Dosage How to Use Copper Peptides, Injections Neurogan Health GHK Cu Peptide: What It Does for Body Composition and Metabolic Health Nano Glutathione Spray Dr. Don Colbert MD Divine Health