vitamin b12 dosing injection Hydroxocobalamin Injection: for Energy & Anemia — Mountainside Medical Vitamin B12 Injection (Single-dose Vial)
Description
The only way to know for sure if you need B12 injections is by getting a blood test

It travels easily through your blood brain barrier to protect your blood cells

There's currently no established Tolerable Upper Intake Level (UL) for B12 due to insufficient scientific evidence
Micronutrient deficiency is a leading cause of many health issues, including fatigue

10.3389/fnins.2016.00486 Front
