Subcutaneous Injection Sites and Instructions for Safe Self Administration B12 Injections for Energy: Benefits and How It Works AZ IV Medics Best Vitamin B12 Injection Site: Administering B12 Shots How SubQ Injections Like B12 and NAD+ Fit Your Routine Olympia Pharmaceuticals Subcutaneous (SC) and Intramuscular (IM) Injections Must Knows for Subcutaneous administration: Pinch skin with non dominant hand and hold syringe with dominant hand Always inject: 2 inches away from umbilicus (for abdomen) 3 inches