XL Energy Drink is an excellent, tasty, lightly carbonated drink, carefully formulated for times where extended energy is needed for best performance. It improves vigilance and wakefulness, concentration and reaction speed, increases physical endurance, stimulates metabolism and helps body to break down toxic substances. XL Energy Drink will satisfy busy professionals, active students, athletes and anybody who has to achieve extraordinary performance. concentration and reaction speed, increases physical endurance, stimulates metabolism and helps body to break down toxic substances.