What are the benefits of B12 injection? Blades Wellness How to Give a B12 Injection: Step By Step Instructions B12 Injections at Home Safety Guide for Self Administration Infusion For Health 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 B12 vitamin Store Intramuscular vs Subcutaneous Injections for vitamin B12 supplements. Needle Injection Techniques Every Nurse Should Know! Whether you're prepping for your NCLEX or brushing up on your skills, here's a quick breakdown of the most common injection routes you'll encounter