what are b12 injections called Lipo-B Injection B12 Shots vs. IV Infusions:

this is a maximum hypersensitivity reaction of the immune system with varying degrees of severity, but which can be acutely life-threatening (Bilwani et al., 2005)

In neuronal senescence model studies, the active ingredient of the product can cross the blood-brain barrier (and act directly on neurons in vitro), increase NAD+ levels in nerve cells, protect mitochondrial function, reduce neuronal apoptosis, and promote the synthesis and release of neurotransmitters (such as dopamine and acetylcholine), thereby improving signal transduction in nerve cells

Eventually, production stops

Rotate the injection site each day to prevent irritation and lipohypertrophy