Curious about B12 shots? The Wellness Center Are B12 Shots Safe? Royal Palm Beach Medical Group Vitamin B12 Shots for Ultimate Rejuvenation in Catonsville MD B12 Injections vs. Oral Supplements: Which Is Better? Vitamin B12 injections deliver high doses of this essential vitamin directly into your bloodstream for better absorption than oral supplements to boost energy, support red blood cell production and maintain nerve function. What are Vitamin B12 injections Vitamin B12 injections are used to quickly raise your B12 levels when they're low or when your body can't absorb it properly from food or tablets. What