where to inject vitamin b12 shots How to Self-Inject Vitamin B12

But as your B12 level rises, youll be able to get them more infrequently

Allergic reactions, such as a rash, itching, swelling, or redness, happen due to high vitamin dosage or as a response to the needle coating

In this case, your healthcare provider will recommend supplementation to help get your level where it should be

Some patients report it as a less painful alternative because the needle that goes into the fatty tissue just below the skin is thinner and shorter, usually one-half to five-eighths of an inch long

Plus, the symptoms of low B12 can be very subtle, or they may be confused for symptoms of other conditions

Its also important for healthy brain function and keeping your energy levels high