Boing!!!!
I really don't want to know what is in this stuff but the effect is powerful and prolonged.  I take it now three hours before working out so I can sleep at night and not only does my energy level rise but my mood elevates as well.  I move into "positive" mode so working out become fun, sometimes silly and certainly gets done.  In fact to take this and not work out causes me some problems as I am overstimulated and edgy.  It is the only product of this nature I have used that works.  I am 65 and going at it big time.  Just be careful to be sure you are going to work out before taking and to not take it close to bedtime - you will end up glued to the ceiling!
Rating: 5 stars