Don’t wait until you feel like crap in the morning - start your night off right by hydrating your body with the vitamins it needs. One of the major causes of a hangover is dehydration. Pumping yourself with fluids in advance allows your body to handle whatever the night throws at you and with the added B-complex, you’ll feel like you have tiger’s blood coursing through your veins (or you’ll feel like you have the strength of two and a half men).