Subcutaneous injection: Definition and what to expect Experiencing itching & burning from your GHK CU peptide injections? Try these to hacks: 1. Use a longer syringe to penetrate deeper into the fat cells. 2. Dilute the copper. Here I 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 GHK Cu vs NAD+: Which Longevity Peptide Should You Take or Stack? Ultimate Guide to GHK Cu for Dogs: Benefits, Uses, Safety, & Applications iHeartDogs.com Should Bodybuilders Take GHK Cu? Neurogan Health