A little insight to the importance of the b12 injections. My client hadn't been feeling well & had some bloods done with her GP. The results identified a severe deficiency in b12. Vitamin B12 Shots for Ultimate Rejuvenation in Catonsville MD Vitamin B12 Shots Specialist Near Me in Canton, MI B12 Injections Specialist in Scottsdale, AZ How often should vitamin B12 injections be administered and how frequently should laboratory monitoring be performed? B12 Injection Frequency: How Often Should You Get a B12 Shot? Liv Hospital