L-Theanine
L-theanine is an amino acid found in green tea that promotes relaxation without drowsiness. Improves concentration and reduces anxiety.
What is it for?
💡 Absorption: Works well combined with caffeine to improve focus without jitteriness. Effect is rapid (30-60 min).
⚠️ Caution: Very safe. No significant side effects at normal doses. May potentiate the effect of blood pressure medications. In those under 18, use only under medical/pediatric supervision.
Recommended doses
Range: 100 – 400 mg
Combine with caffeine for focus
Interactions with other supplements
Both promote relaxation through complementary pathways. Excellent combination for sleep.
📚 Scientific references (2)▼
RCT triple ciego. 200mg de L-teanina aumento ondas alfa cerebrales y redujo cortisol salival 1 hora post-dosis vs placebo.
RCT con 30 adultos sanos. 200mg/dia durante 4 semanas redujo estres, mejoro sueno y funcion cognitiva.
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