Thinphetamine

. Increased energy levels.
. Increase strength levels.
. Increased mental activity creating deep focused concentration for deeper muscle recruitment and thus, muscle stimulation.
. Increased metabolic rate causing your abs to get shredded and ripped.

How it works from a scientific standpoint is a combination of compounds called Methyl-xanthines that work by attaching to receptors which then release massive amounts of adrenalin and as you are well aware, this is basically how the best pre-workout stimulant of all time ephedrine worked!