L-Theanine
L-Theanine — unique tea amino acid promoting calm focus. Synergizes with caffeine, highest in shade-grown matcha.
速览
- 化学式
- C₇H₁₄N₂O₃
- 每杯典型用量
- 25.00 mg
描述
A unique amino acid found almost exclusively in tea (Camellia sinensis) and certain mushrooms. L-theanine crosses the blood-brain barrier and promotes alpha brain wave production, creating a state of calm alertness without drowsiness. It synergizes with caffeine to enhance cognitive function while reducing caffeine's jittery side effects. Shade-grown teas (matcha, gyokuro) contain 3-5 times more L-theanine than sun-grown varieties because sunlight converts L-theanine into catechins.
健康功效
Promotes relaxation without sedation via alpha brain waves, enhances focus and concentration (synergy with caffeine), reduces stress and anxiety, improves sleep quality, supports immune function.