Red Bull Energy Drink contains ingredients such as caffeine, taurine, B-group vitamins, sugar and water.Caffeine helps to improve concentration and increase alertness.B-group vitamins (niacin, pantothenic acid, B6, B12) contribute to the reduction of tiredness and fatigue.Sugars, which are a type of carbohydrate, are an energy source for the body – including the brain and muscles.Taurine, an amino acid that occurs naturally in the human body, is involved in a range of processes including regulation of water/electrolyte balance at the cellular level. For more information, refer to the nutrition label on the can and visit the Red Bull Energy Drink Ingredient Page