There are so many benefits of Vitamin B12 and you may be deficient and not even know it! Come in and try a B12 injection today to feel the difference Red liquid (vitamin B12) in a disposable syringe with a needle and in a glass ampoule on a white background. Lots of empty space Stock Photo Alamy What Syringe Size to Use for B12 TikTok Still taking vitamin B12 injections? Move over shot. A pill may be just as good. Dr. Leslie Greenberg's Blog B12 Injections: How They Work and Who Needs Them Meo Nutrition