I've been taking this stuff for close to three weeks and all I have to say about it is wow what an energy drink. As far as weight gains in my lifting I cannot say that it has done much. I have seen the same gains lifting without this product. I would say this is just another supplement like NO explode to make people attracted to the tittle so they are motivated to hit the gym. The people I know personally that take jack3d are not dedicated to lifting or any other type of working out and I feel like its a cop out to hit the gym and have some self motivation because they spent $30 on something. I personally did the same weight on this product and off of it, the only difference was I felt so tired after the gym taking jack3d. Jack3d is nothing more then a Monster energy drink with creatine. I'm sick of all the talk about this supplement.