Having been on this for a little while now I can say that I definitely notice a difference...infact in my first week of being on it my weight went down 6 lbs so we definitely have a good supplement to assist in weight and fatloss. On the other hand this stuff really can get you hyper and give you the jitters at times. This is not an all the time thing but as someone who hasn't been light with caffiene in the past I found this surprising. I feel the actual working element of this is better then the Stacker 2 I was taking. So in conclusion I am happy with the product and feel it works very well just be prepared for the other side of it which could potentially be a good thing in itself |