Paullinia cupana, commonly known as guarana, is a climbing plant native to the Amazon basin, particularly in Brazil. It is well-known for its seeds, which contain high levels of caffeine, often more than coffee beans. Guarana is frequently used in energy drinks and dietary supplements due to its stimulating properties. The seeds of guarana are typically ground into a powder and can be added to various products. In traditional medicine, indigenous peoples of the Amazon have used guarana for its energizing effects and to treat various ailments. Its popularity has grown globally, making it a common ingredient in health and wellness products.