Vitamin B12 is important for the growth and development of red blood cells
The products are not medicines or drugs and they have not been approved by the fda to prevent, treat, diagnose, mitigate, or cure any disease, ailment or medical condition.
But it does not cause a direct rise in testosterone levels
Therefore, vitamin B12 should only be injected by a health care professional who is prepared to provide first aid immediately
Phillip (eds.), Critical Care Medicine (Third Edition) , Philadelphia: Mosby, pp
Many users find that metabolic benefits persist for several weeks after discontinuing treatment, suggesting lasting improvements in cellular function