Check the syringe for air bubbles. Air bubbles in the syringe will not be harmful if they are injected, but they can reduce the amount of medication in the syringe. To remove air bubbles, turn insulin syringe needle up and tap the syringe so the air bubbles rise to the top and evacuate any excess air by pressing on the plunger slightly.
just dont ever main line your hgh and you should be ok.
remember the shot IS sub-cutaneous NOT intermuscular