Red Bull gives you wings! What’s Inside: Caffeine: Caffeine has already been known for its stimulating effects on the human body by ancient civilizations who consumed it from natural sources like tea, coffee, cacao beans & cola nuts. Taurine: Taurine is an amino acid, naturally occurring in the human body and present in the daily diet. It is involved in a wide range of biological processes. B-group vitamins: Vitamins are essential micronutrients that are required for maintaining normal body functions. B-group vitamins play an important role in energy metabolism, such as the build-up and break-down of carbohydrates and protein.