Unfortunately, it's yet another GABA agonist, and after it wears off, I get severe brain fog. Also, it has diminishing returns. If I take it more than 3 days in a row, it does nothing. So many of the supplements and nootropics that I've tried for programming are the same way. The only three that I take now are caffeine(daily), nicotine(rarely) and adderall(very rarely).