ALL BRANDS OF REDBULL ENERGY DRINKS AVAILABLE RedBull is a utility drink to be taken against mental or physical weariness or exhaustion.Energy drinks combines two natural substances and important metabolic Transmitters - the amino acid taurine and the glucuronolactone with stimulating caffeine, vitamins and the energy provided by carbohydrates, Energy drinks is designed to increase endurance and concentration, improve reaction speed, and stimulate the metabolism.