Subcutaneous injection: Definition and what to expect Subcutaneous Injection Sites and Instructions for Safe Self Administration Understanding GHK Cu Peptide News Bloom Tech 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 Subcutaneous Injection: What It Is and How to Give One