what are b12 injections good for the benefits of injection? Who Offers Vitamin B12 for
Description
Since it doesnt list B (often called cyanocobalamin on labels), that confirms youd need a separate source for B

Insulin sensitivity and glucose handling

Chronic conditions require longer exposure, typically four to eight weeks minimum before meaningful progress occurs

Ann Hematol

British Journal of Hematology 2010

By the time I was given more regular injections following that blood test my symptoms had returned and I believe that is why I have neurological damage continuing after 6 years