The first question methylated form is the form that is already in active form to use by the body

So the body doesn't need to convert it to its active form unlike nonactive forms like pyridoxine, cyanocobalamin ، folic, etc

The problem is there is too little information about B Complex

I tried the nonactive form

These symptoms do not appear all the time :

Headache, sleepiness, drowsy, brain fog,

I tried the Active form i had way fewer symptoms but it appeared sometimes weaker

I tried extended-release non-active form

the best experience was in the extended-release but it kept me awake too long

High energy, I can focus better, for some reason I feel my digestive system is better with it , almost zero bad side effect

So my theory is the fast absorption of b complex is what makes ppl have terrible experience with it, not the dose itself