400mg a day b2, divided in 200mg morning and night.
I only do the 200mg morning along with 5000mcg b12 and nature’s valley I believe it is b stress complex.
Very little to no headaches. Will take 200mg b2 evening if it is a super tight head day…
I also canny take magnesium orally. I
if I want to tense every muscle in my body… Consume magnesium. I I use a lotion form from Jordan essentials for muscle tightness which is the only one that works for me.