Feb 19, 2015 Let's first talk about what is in it. It's important to know what you are putting into your body! 300 mg of caffiene per serving (2 pills) 400mgs Yohimbe bark extract Vit E for fat oxidation (release of free radicals) DMAE - supposed to improve cognitive functioning with increased acetylcholine levels, which can also act as a mild stimulant. 25mgs Synepherine (bitter orange) - similar to ephedrine but less potent tyrosine and taurine So far my workouts have been very focused and energized without the jitters. No anxiety or anything of that sort after my workouts. Penis seems to have an increased flaccid state following my workout. I particularly like that it is in pill form. Much easier to just pop two of these pre and start warming up. Screwing around with a shaker several times a day as it is.