Choosing the Right Needle and Syringe for B12 Injections: A Complete Guide B12 injections UK How I give myself a vitamin injection Seeing Red: Do B12 Injections Work? LAmag How to draw up B12 (labeled as Methylcobalamin) Injections Transformations Weight Loss Amazon.com: Ulove Prs 12 Pack 1ml Industrial Syringes with 25Ga 1 Inch Needle, Plastic Disposable Syringe and needle for Scientific Labs, Liquids Refilling and Measuring : Industrial & Scientific B12 shots can help with energy, focus, and just feeling better. My personal experience with this injection is not realizing I felt like I was living under a dark cloud. until I felt like I wasnt.