high b12 levels from injections Injection Therapy in Shoreline WA: Enhance Your Health Today b12 level 2000 after injection
Description
Vitamin B12 MedlinePlus Medical Encyclopedia: US National Library of Medicine
Excessive Bvitamin intake does not accelerate hair growth and may cause side effects

A lack of the vitamin means a lack of red blood cells, and different parts of the body, deprived of oxygen carried by red blood cells, will begin to be affected

This is guessing

Sirtuin activation and mitochondrial biogenesis
