I was shipped the wrong supplement a while back.... looked it up, and found someone here posting it as a helpful herb for ME/CFS. Adaptogenic, and nootropic. Good for brainfog. I took part of a capsule. I got my brain back! It was like before ME. No strength, energy, no stimulant effects, feeling hyper as with some other things I've tried. I was able to write, really write. Took it two days in a row, first about 200 mg, then 130 mg or so. Some insomnia, my mind wouldn't shut off. I had ideas for my book coming nonstop. Took a week break from it. But kept writing. Tried two days of a lower dose, not quite as strong effect, but still able to write. Then, a big, big relapse. Just from mental output, not physical. !!!! Has been the biggest relapse in years. I kept writing bits now and then, even lying down, couldn't stop. Finally, so exhausted, I had to put it all awy in a box... print out everything, and put it away, so I could REST. That worked. But I'm still quite crashed several weeks later. Very slowly improving. Just thought I'd share my experience. Anyone else have this happen? While it worked, before the crash, it was WONDERFUL. My brain worked. I felt like I had purpose again, being able to write. Oh, well.