Yerba mat is a nutritious source of energy, mental alertness and good health, and Yerba Mat Royale Chai Tea is no exception. With less caffeine than coffee or black tea, yerba mat energizes with nutrition by providing 196 active compounds including vitamins, minerals and more antioxidants than green tea. This non-jittery boost of energy and nutrition makes yerba mat nature's premier energy beverage for body and mind.