b12 2 mg injection Vitamin Injections (Cyanocobalamin Injections) — Mountainside Medical Vitamin B12 Injection – Manufacturer
Description
To optimize our health and wellness, its very important that our bodies get an appropriate amount of vitamins and minerals

The exact shade depends on their B12 concentration

Frequency depends on your baseline B12 status and your goals

I have noticed a slight increase in energy

Same answer