This pre-workout is similar to the original JACK3D, for those that remember it in its heyday. If you're looking for something with a literal laser-like focus, that delivers a strong sense of euphoria, and doesn't have a crash, then give this one a try.
NOTE: Not for beginners. Start with half a scoop as directed on the bottle.
From TNS, the brand:
You’re hardcore. You’ve climbed the tops of mountains in search of mythical beasts for pumps, traversed the world for magical fruits of energy, and navigated space for an otherworldly focus... now in your quest for more you’ll have to turn inward... you’ll have to harness your own lunacy... The part of you you’re too scared to look at? Can you handle letting loose the beast inside? You’ve Enjoyed the Ride but do you believe you’re ready... to Enjoy the Insanity?