vitamin b12 injection is for what Benefits of Injections Skin Vitamin b12 Injection | CardioMender,
Description
Homocysteine concentrations in adults with trisomy 21: Effect of B vitamins and genetic polymorphisms

A serum B12 level test and ideally a methylmalonic acid test should be performed before starting B12 injections

That's why we offer customized Vitamin B12 doses

You might feel a little bit of soreness at the injection site afterward, similar to any other shot, but it usually fades very quickly
