Guarana is an evergreen vine found in the Amazon basin. For centuries the seeds have been made into a paste or used in teas. Guarana naturally contains caffeine & the alkaloids, Theobromine & Theophylline. The effects of these three constituents are well known & include helping the central nervous system, maintaining energy levels & mental alertness, especially when feeling tired! Guarana is used by busy mums, students, athletes, drivers, teachers & professionals alike!