2 ms·

Didn't do anything for me. My roommate said it improved his ability to do mental math, but the improvement wasn't worth continuing to take it.

• gwern 17y ago
  You have to take it with a choline source. I noticed next to nothing taking it alone, but when I took it with some choline bitartrate, that's when I noticed an effect and my dual n-back scores rose a little.
  • rms 17y ago
    We were taking it with choline also.