What is Guarana in Rigaman?

I checked the information. The natural caffeine contained in Rijiaman is extracted from the most famous Guarana in Brazil. It is one of the medicinal plants in rainforest recorded for a long time in history. Because its fruit looks like millions of pairs of overlooking eyes, it is also called "mysterious eyes" by the aborigines. Its main ingredient is guarana, and its chemical composition is almost equivalent to caffeine. People will feel energetic and energetic after eating guarana. Moreover, Rijiaman contains a variety of amino acids, which can quickly supplement the nutrition and energy needed by human body and enhance human immunity, so Rijiaman is a green new energy source.