where to put vitamin b12 injection C and Techniques Where to Inject Vitamin B12

Make absolutely sure the alcohol has dried completely before inserting the needle (wet alcohol can sting when pushed into the skin)

The absence of reported serious effects does not guarantee safety

However, if you have a severe deficiency or a condition that prevents proper B12 absorption, injections may be the better choice

How Vitamin B12 Injections Work in the Body Unlike tablets, injections bypass the digestive system

First, the vast majority of available data derives from animal studies, and extrapolation to human applications may not be straightforward due to species differences in physiology and drug metabolism