What Is Paullinia cupana (Guarana)? Paullinia cupana, commonly known as guarana, is a shrub native to Brazil. Paullinia cupana seeds are high in caffeine, and extracts are commonly added to energy drinks. Natives in Brazil have eaten the seeds for hundreds of years for their many health benefits. Paullinia cupana (Guarana) Benefits † Paullinia cupana (Guarana) is a highly significant source of caffeine that helps boost energy and awareness. It also helps maintain a healthy weight, support the digestive tract, promotes heart health, and supports vision health. Not intended for those under 18 years of age. Boosts energy levels to keep you focused & increase athletic performance Aids libido & supports sexual health Promotes a healthy mood Fat-blocker & helps manage weight Contributes to a healthy brain & aids cognition