Would that increase levels of serotonin, decrease levels of dopamine (both?). I still seem to have some issues with mood/depression and while there is a lot other issues aside from my snps, I can't seem to figure out if what mao b does exactly, from what I've seen it seems to degrade (and i think break down) dopamine. I know that in my 23andme test it says serotonin from the notes when I had it analyzed. I can't get a neurotransmitter test either (lack of money on my part), but I was able to get a test that tests a precursor to serotonin which showed normal to high levels of serotonin (although I could have ate something that elevated those as well). I just want to know if I should be trying to raise my dopamine levels or serotonin levels. Since I believe depression/mood can be affected by either low serotonin or low dopamine.