L-Theanine by XYMOGEN® features Suntheanine®, a patented form of L-theanine, an amino acid found in green tea leaves known for promoting relaxation without causing drowsiness. This supplement supports nervous system health and function, helping to ease nervousness due to overwork and fatigue, and reducing nervous irritability. Human studies suggest that L-theanine may also support concentration and reduce negative side effects from caffeine. Additionally, it may support antioxidant and detoxification mechanisms, contributing to liver health and function, and may aid in maintaining blood pressure already within the normal range.