can b12 injections cause fever Why do I feel worse after a injection? Vitamin B12 Side Effects: Risks
Description
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology

Frequently Asked Questions On Vitamin B12 For Hair Yes, maintaining adequate levels of B12 can help restore the proper functioning in the body that will lead to healthy hair growth

Helps repair and regenerate damaged nerve cells

Morning injection is preferred, ideally 30 to 60 minutes before exercise

Most people barely feel more than a small pinch

It is banned in professional sports by WADA but remains available in research and wellness clinics