b12 injected into blood vessel Best Vitamin Injection Sites B12 Shots vs. IV Infusions:

Now we know that the British National Formulary (BNF), that little booklet that is produced twice a year by the Royal Pharmaceutical Society and the Royal Society of Medicine which acts as a reference for doctors to consult in order to treat patients correctly, used to recommend a 1mg injection of Hydroxocobalamin every month when the injection was introduced at the start of the 1960s

Readers are advised to consult with a qualified healthcare professional for any medical concerns including side effects

Its important not to increase the frequency of B12 injections without medical guidance, as unnecessary supplementation offers little benefit for most people, and your body will naturally eliminate what it doesnt need

Those with more adipose tissue or slower initial response may benefit from increasing to 400-500mcg

Do not ingest, inject, reconstitute, or otherwise administer

Hydroxocobalamin is natural and lasts longer