b12 folic acid injection 5 mg per mL 10 mL Sterile Injectable Vitamin Supplement for Deficiency Treatment Folic Acid (Vitamin B9) Injection

Safety and Potential Side Effects One of the best things about B12 is its excellent safety profile

Strengthened Immune System : By supporting red blood cell production, B12 can improve your bodys ability to fight off illness

The injections typically include ingredients like methionine, inositol, choline, B12 and sometimes L-carnitine

It may also improve fatigue and insomnia

You can buy this over the counter here

[1] [6] Severe deficiencies may include symptoms of reduced heart function, suppression of bone marrow, as well as more various severe neurological symptoms possibly including sensory loss, abnormal balance and reflexes, memory and consciousness impairment, smell and taste problems, depression, irritability, confusion, and psychosis