Mango flavoured energy drink, with added: - Caffeine - Taurine - B-Vitamins B3, B6, 12 - Ginseng - Guarana - Inositol Refresh your mind and drive with Rockstar Juiced El Mango Energy Drink. If you're in need of a quick boost of energy for a busy day ahead, this energy drink will help you stay sharp. Energy when you need it most, with a tangy burst of Mango and added Caffeine and B Vitamins mixed with Taurine, Guarana and Ginseng.