Basically, it looks like a Redbull filled with DMAA, and I would not use this sort of preworkout supplements. Unfortunately, there are too many downsides with them, such as adrenal fatigue, which can hit you back later on, and sometimes even before you finish your workout. Additionally, these stim based preworkouts can cause jittery hands, headaches, and increased BP coupled with insomnia. Besides, over time it will lose effectiveness, and you will need to increase dosages in order to get the same effect. Therefore, I would strongly recommend using non-stim preworkouts, such as DSpark. It is my favorite preworkout because it has no stims in it, and yet it gives me great energy levels in the gym with good pumps. I have tried several other non-stim preworkouts before, but none of them gave me such noticeable effects.