Just wanted to say this is the most powerful pre-workout formula I've ever tried! I'm 51,been training seriously for 20 years and have tried just about everything on the market,was previously using Ritual,Craze, and Conquer in rotation. I also use 2-3 servings of Optimum Amino Energy throughout the day. Since I have a very high tolerance to stims I opted for 2 full scoops of Enhanced. Wayyy too much lol! I trained this morning from 4-530 and am still full of energy now at noon! Workout was brutal,back&biceps,could'nt get enough . This stuff feels almost like a strong dose of ephedra without the jitters. Also unlike ephedra which dries out my mouth,this makes me salivate more,not running to the water fountain every couple sets. Pumps are great. I did mix an extra 500mgs of agmatine in which was prob not needed. Also not feeling the need for my midday shot of Amino Energy. I'm using this again in the morning,but only 1 scoop lol! On a scale of 1-10 I'd give Enhanced a 20! This is my first experience with PES products and am impressed Also got a bottle of Erase coming, trying it out for my TRT anti-estrogen. Will def be trying out more of the PES product line!