Getting B12 Injections: Prescription Process Explained Your body needs vitamin B12 to keep blood cells healthy and to make your nerves work right. Here are some signs that you're low on this vitamin:https: wb.md 3LkUbOw Buy Starter Pack Complete Research Peptide Kit Pepamino Feeling tired, foggy, or run down? It could be a B12 deficiency Weekly B12 injections help support: Increased energy + reduced fatigue Sharper focus + better mood Boosted Vitamin B12 Deficiency Vitamin B12 deficiency happens when the body does not have enough vitamin B12. Vitamin B12 is important for making healthy red blood cells and keeping nerves B12 Shots for Energy: Do They Work, Who Needs Them & What to Expect Greenwich Medical Spa