B12 Shots & B12 Injections: The Good, Bad and Alternative! Vitamin B 12 intramuscular injections are also used therapeutically to help restore energy and combat various symptoms related to such deficiencies. Vitamin B 12 is essential to the development of healthy blood cells, nerve What Are B12 Injections? And Are They Safe? OmegaQuant A vitamin B12 injection is a shot that delivers B12 directly into your muscle, helping your body absorb it quickly (especially if your body struggles to absorb it from food or tablets) Vitamin B 12 Injections Vs Oral Pills: Expert Insights Regenics Blog