B12 Shots at Home: How, Where & How Often to Inject Yourself AZ IV Medics My Acupuncture sessions generally end with a B12 Shot in Acupuncture Points. It makes the point active longer since there is pressure on it from the B12 while it absorbs. Injectable B12 is absorbed How SubQ Injections Like B12 and NAD+ Fit Your Routine Olympia Pharmaceuticals Vitamin B12 Injections Dosage and Frequency IVBoost