Methylcobalamin is the form of vitamin B12 that supports brain and nerve health; it is called "neurologically active." Your liver has to convert regular B12 (cyanocobalamin) into methylcobalamin. People over 50, vegans, senior citizens and those with certain health conditions may need supplementation with B12.
Shake, spray under tongue or on inside of cheek. Hold for 20 seconds and swallow. There are approximately 88 sprays per bottle.