"I was cautious about this product at first, but this was my second box, so I was obviously satisfied. The thing is, for real change to occur quickly you need to be taking 3 or 4 pills twice a day. If you are caffeine sensitive, you will definitely feel the effects of this product right away, but I have been taking caffeine supplements for awhile and so I couldn't feel those effects very well. That is the only reason I am not planning on continuing the use of this product. I need that boost in the gym after work and this product delivered at first, but my body became accustomed to the caffeine dosage after about 5 weeks and I didn't want to over-do it by taking caffeine with this product."
