L-Theanine
Also known as: theanine, L-γ-glutamylethylamide
An amino acid found naturally in green tea. Used for promoting relaxation without sedation, reducing anxiety, and supporting sleep quality. Popular with perimenopausal women experiencing anxiety, racing thoughts, and sleep-onset difficulty.
This page contains self-reported experiences from the Narrated community — not clinical data. Outcomes are subjective. Always consult your doctor or specialist before starting, stopping, or changing any approach.
Regulatory status does not mean an approach is safe or unsafe. Laws vary by country — check your local regulations.
Community Experiences
0 reports from women who tried L-Theanine
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Research Context
Research context compiled from published sources
How does L-Theanine work?
Crosses the blood–brain barrier and increases alpha brain wave activity, associated with a state of relaxed alertness. Increases GABA, serotonin, and dopamine levels in the brain. Also modulates glutamate signalling via antagonism at AMPA receptors, reducing excitatory neurotransmission without causing drowsiness.
Research Depth
Unknown
Long-Term Evidence
Limited
Only short-term data available. Long-term effects are not well understood.
Known Interactions
Reported Contraindicated Populations
Published Dose Ranges
Dose ranges from published research. Individual dosing should be determined with your healthcare provider based on your specific circumstances.
Factual research context from published sources — not a safety assessment or recommendation. Research classifications may change as new data emerges.
Related Approaches
Other Supplement tracked on Narrated.
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