I used this producta bout 3 years ago in college and personally I think this an excellent overall body and mind supplement. I felt mentally energized and physically capable of everything. It works quick and it makes you feel good haha. It helped me a lot to study and concentrate and plus it gave a lil bit of extra stamina in the gym. I liked it a lot, too bad it was too expensive.
I know it works, cuz I was an adderall study rat in college, and I used to take adderall for like a week everytime I had a test, but I hated the side effects of it. Although it made me feel pretty good about myself haha. With Bodyquick, I noticed I felt good, but not like "high happy- damn I feel GRRRREEAT" and it helped to concentrate and memorize everything. However, you develop tolerance to it quick, so make sure you only take it when you need it or skip days on it (at least 2) cuz it is a good product, but a high tolerance can kill how effective it can be.
I didn't buy it again cuz it was too expensive for a college kid.

I reccommend this to everybody, regardless of what you do in life, it would definitely give you an extra donkey kick to get any task done right and quick.