Research is ongoing in this area for individuals without a deficiency, but if you have a deficiency, vitamin B12 injections may help fight fatigue, weakness, and other symptoms
It also has documented anti-inflammatory effects relevant to several types of hair loss, where chronic inflammation around follicles is a contributing factor
Side effects and how to manage them KLOW is generally well-tolerated, but side effects can occur, particularly during the introduction phase or after dose increases
It does not create a 1 mg microdose, a 2 mg split, or a custom intermediate step
However, the conservative approach is waiting until skeletal maturity and the early 20s when growth plates are fully closed and endocrine systems are mature
Acknowledgements This work was supported by the Burroughs Wellcome Fund (BWF) in Pathogenesis of Infectious Disease (PATH award to B.P.C., PATH award to S.H.), the National Institutes of Health (NIH) (R01AI173004 and R01AI179695 to B.P.C