Good product, but maybe a little too good. I only took this twice on separate occasions because the effect was so strong, and the only other supplements/meds I had was the adaptAll earlier in the day and I'm a health 23yo guy. The first time, with 1 pill @4:30pm, I was extremely drowsy within 30min and barely remember the rest of the day. Tried it again a couple weeks later, 2pills @10:00pm, and I felt extremely drowsy again but additionally it felt like my heart was going to explode, and I drifted in and out of consciousness. I felt great the next day though, the same feeling I have the day after an intense crossfit workout. I would be scared to let anyone over 45yo try this supplement because the cardiovascular effect was so strong. Also this is so much stronger than alcohol as a depressant, so plz plz plz only take just before bed. And finally, I'm concerned that taking this on a regular basis would cause drowsiness/low-energy and possibly even serotonin syndrome. I would only take this on rare occasions as a sleep aid and only if you're healthy.