How Quickly Do Vitamin B12 Injections Work? Prime Aesthetics Understanding the B12 Vitamin Shot: Benefits, Risks, and Dosage Guide B12 Shots at Home: How, Where & How Often to Inject Yourself AZ IV Medics The Benefits Of Vitamin B12 Ugly London. Acupuncture & Chinese Herbal Medicine Radiant Did you know we offer B12 injections right here in the clinic? Vitamin B12 injections are becoming more in demand as people become awar of the many benefits! Vitamin B12 Vitamin B12 (cobalamin) and folate (vitamin B9) are vitamins that serve important functions in the human body. Folate is needed for development and growth of cells (including red blood cells) and synthesis