L-Theanine

L-Theanine, among other things, reduces the level of stress and anxiety. It also improves wellbeing and reduces body tension, improving the quality of sleep and making it easier to relax. L-Theanine not only has a calming effect—it also increases the level of neurotransmitters (serotonin and dopamine), which makes it easier to remember new information. Increasing serotonin levels also lowers blood pressure.