Graded against 173,636 supplements + 177 published clinical interactions, sourced from PubMed, FDA CAERS, openFDA, NIH DSLD
L-Theanine
MODERATE EVIDENCEAmino AcidLast updated
AVELOR SUMMARY
Cross-reference to l-theanine.md. Suntheanine® is the branded form used in most studies. 100-200mg promotes alpha brain waves (calm focus) within 30-45 minutes. The L-theanine + caffeine stack is the most studied nootropic combination — synergistic for focus without jitters.
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*Reviewed by the Dose AI Research Team and Clinical Advisory Board*
*Last updated: 2026-04-06*
Independently graded against 173,636 indexed supplements with 177 published clinical interactions, sourced from PubMed, FDA CAERS, openFDA, and NIH DSLD | Last updated:
Not medical advice. Based on published clinical research and systematic reviews.