Lipo Injections: How Often Should You Take Them? Invigor Medical B12 Shots at Home: How, Where & How Often to Inject Yourself AZ IV Medics B 12 Injections Specialists in San Antonio, TX Main benefits of B12 injections 1) Increased energy & reduced fatigue B12 helps convert food into usable energy Deficiency often causes tiredness, weakness, and low stamina 2) Healthy red blood cells Prevents Boost your energy with B12 injections Stop by when our nurse staff is available for injection, or pick one up to administer at homeeasy and convenient. $25 per shot! DM us