L-Theanine
Primary Use / Function: Promotes relaxation without drowsiness, enhances focus and attention, reduces anxiety, and may help improve sleep quality

Daily Dose Range: 100–400 mg
Frequency: 1–2 times daily (morning for focus, evening for relaxation/sleep)
With Food? Optional — can be taken with or without food
Enhancing Combinations:Caffeine (improves focus and alert calmness), Magnesium Glycinate (for relaxation), Ashwagandha (for anti-stress effects)
Gender Specific:No — suitable for all genders
Contraindications / Cautions: Generally safe; caution if combined with sedatives or medications for high blood pressure
Notes: Naturally found in green tea; often used to balance out the stimulating effects of caffeine; useful for those sensitive to stress or tension



