Red Bull Gives You Wiiings - Stay alert Red Bull Energy Drink contains caffeine that helps to improve concentration and increase alertness. - Reduce fatigue Red Bull Energy Drink contains B-group vitamins (niacinamide, pantothenic acid, B6, B12), which contribute to the reduction of tiredness and fatigue. - Kickstart your day Red Bull Energy Drink contains sugar, a fast-absorbing form of carbohydrate involved in a wide range of biological processes and an energy source for the brain and muscles. Each 250 ml can of Red Bull Energy Drink contains 80 mg of caffeine, about the same amount as in a cup of coffee. Caffeine helps to improve concentration and increase alertness. Red Bull Energy Drink is gluten-free, wheat-free, lactose-free, dairy-free, and vegan.