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 Steve A new favorite anti aging peptide GHK CU. Help renewal of skin and acts like a magnet for collagen in your body. If you supplement collagen you will want to add this GHK Cu 100mg Research Compound Australia Are GHK Cu Injections Safe Enough? Alternatives Options Neurogan Health