Supplement Profile · JSON Endpoint
L-Theanine
Amino acid from tea leaves associated with relaxation and alpha-wave activity without sedation.
Updated Oct 16, 2025
Key Benefits
- Relaxation without drowsiness
- Focus enhancement
- Sleep synergy with caffeine or GABA
Dosage Guidance
100–400 mg/day; often 200 mg for acute calm-focus.
Safety Notes
Well-tolerated; limited interactions reported.
Citations
- Theanine and cognition PMID:0001006