matcha can give you an energy boost, without any jittery side effects. matcha contains a mild stimulant called theophylline. unlike the caffeine found in coffee, matcha theophylline releases smaller dosages of stimulation over a much longer period of time. matcha theophylline can help to keep you awake and focused for as long as 3 to 6 hours without any of the negative side effects often associated with the caffeine found in coffee.