Risks of reusing syringes and needles Peptide Injections: What They Are, What They Promise, and the Big Unknowns 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 you're Common Syringe Mistakes That Put Patients at Risk If you're using GHK Cu and it stings a little (which is common) this one's for you In this reel I'm sharing the small tweaks that have helped me make peptide injections