Start your day off strong with energy and mental clarity! Black teas contain 50+mg of caffeine to eliminate fatigue without intense peaks and crashes of energy while also reducing stress. Pu-erh teas contain 60+mg of caffeine to give you enough energy to get you through an entire day. Yerba mate teas contain a small amount of caffeine hut contain the stimulant mateine to give you the same amount of energy as a cup of coffee but without the common side effects such as anxiety, sweating and digestive issues.