Bulletproof methyl b 12 methylcobalamin gives you a convenient chewable andor dissolvable lozenge with a bioactive form of this key nutrient in a refreshing natural spearmint flavor methyl b 12 is essential for dna synthesis and supports healthy brain cells and nerve tissue to keep you sharp and on top of your game they say wisdom comes with age but if youre going to take full advantage of all that knowledge it pays to keep your brain in shape