I always use to drink this when I worked at Bed Bath and Beyond years ago. Actually the employee's were the ones that bought it the most because we all knew it really worked while running around that giant store, dealing with the not so pleasant customers and working long shifts. It's not an intense, anxiety filled energy it's a more natural, good feeling energy. Like some other's have wrote no crash you just start to wind down.
I do agree with the dye statement. Not because of the way it looks but because it's all for looks and not necessary. Artificial dyes are not healthy which is why this review loses a star.