L - Theanine 250 MG 30 CapsProduct description: Supports balanced mental health and emotional wellbeing Maintains a feeling of calm while remaining alert Helps ease nervous tension L theanine is an amino acid found almost exclusively in tea plants and green tea. The pioneers at Taiyo International discovered that the relaxing properties of green tea may be tied to this unique nutrient and developed through a patented process designed to amplify its calming potential. Research