The taste of the booster is unfortunately absolutely chemically, I can not describe exactly what should taste it. I would describe it in about as fruity. I mix the Booster always with about 350 ml of water to 2 scoops. Best you realize the booster on an empty stomach after a meal you can feel almost anything, I would be careful with the Scoops. 1 scoop contains about 100mg of caffeine. For comparison, a caffeine tablet from the pharmacy, has about 200 mg of caffeine and is usually sufficient also to be monitored. Who exaggerates will get trouble sleeping because a feeling arises as though you have only one type of micro-sleep. I've personally experienced it once, it was not pretty;) Whether more pumping is produced by the booster, not for me, but that's feeling thing. I would bring my Booster again, even if the taste is not the best. The price I find ok. I take the booster maximum 2 times a week.