B vitamins are water soluble so anything the body can't handle is passed in your urine.
I use it after a late night study session to keep me going midway through the day. I like it cause I don't get that sudden crash, the effect just fades.
Zetec Crew #73
ATX Faction #24
Mods: Volant CAI, 65mm TB, CFM Lower Mount, VF Passenger Mount, SVT Header, SVT Cat, SVT Flex, and Trubendz 2.5" exhaust, Roush Suspension, Tune and CarPC.