Lots of Vitamin B, according to this Wikipedia-fueled analysis I did for Asylum. I apologize in advance to Science.
The makers of 5-Hour Energy Shot claim it delivers all of the rush with none of the crash that accompanies high-sugar energy drinks. So what's in there to keep you alert?
Thanks to Public Domain Pictures for the coffee and asparagus.

The makers of 5-Hour Energy Shot claim it delivers all of the rush with none of the crash that accompanies high-sugar energy drinks. So what's in there to keep you alert?