Bi Fix Admiral Tea Yerba Mate is a tea in infusion bags. Yerba Mate is the dried leaves of the yarrow plant (Ilex paraguariensis) from South America, which, after drying, crumble into small flakes. Mate does not go through a fermentation process. It contains alkaloids and is also rich in minerals, vitamins and antioxidants. Yerba mate infusion has stimulating properties, stimulates the mind and helps strengthen the body. Contributes to resistance to mental and physical fatigue. Helps maintain a healthy body weight.