Yerba mate CBSE Energy (guarana) is the perfect blend of Yerba Mate infused with guarana. This result in a delicious and invigorating blend that includes guarana flavor with fresh herbs such as mint, verbena and lemon. Mint apparently helps with circulatory system and digestive tract issues.Verbena apparently has a beneficial effect on the gastrointestinal tract, stimulating secretion of the digestive juices and facilitating absorption of nutrients from food.Guarana comes from the Amazon rain forests. The fruit contain a stimulant, also has vitamins A , B and E. Guarana acts as a stimulant, reduces physical and mental fatigue, increases the ability to concentrate and memory. Effects of guarana can be somewhat simplified compared to the action of coffee. However, Guarana is absorbed more slowly in the gastrointestinal tract so its effects last longer.  Yerba mate is also known for its stimulant properties, it makes the two products naturally complementary to each other, providing long-lasting energy throughout the day.