L-Theanine

L-Theanine is a naturally occurring amino acid found primarily in green tea leaves, known for promoting calm focus without causing drowsiness. It works synergistically with caffeine to enhance cognitive performance while smoothing out the jittery side effects often associated with stimulants. Beneficial for the human body, it helps reduce stress and anxiety, supports better sleep quality, boosts immune function, and may even contribute to improved cardiovascular health by lowering blood pressure.