These are the kind of high-stim preworkouts that have the kind of stimulants that aren't available in your traditional pre-workouts. These will definitely give you the insane, out of this world energy and focus you are chasing.
Only for experienced users and users who are aware that they have a high tolerance for stimulants, such as caffeine. It is always recommended to start with 1/2 a scoop of these products to asses your tolerance, so please do not start with a full scoop!
Enjoy!