Calm focus and stress buffering

L-Theanine

L-theanine can reduce perceived stress and anxiety in many users, with modest focus benefits depending on context.

Evidence Level B

Evidence and Risk Labels

Evidence A/B/C reflects research maturity, and risk levels reflect monitoring needs. These labels support comparison, not diagnosis or treatment decisions.

See full scoring guide

Clinical Snapshot

Effect Size
Modest stress/anxiety reduction with supportive focus effects
Safety
Low Risk

Can increase sedation when combined with multiple calming agents.

Research Dosing

This reflects common ranges and protocols used in published studies, not personal medical advice.

Typical Daily Dose
100-400 mg
Timing
Morning/afternoon for focus or evening for calming support
Protocol Duration in Studies
2-12 weeks in stress and attention studies

Often paired with caffeine in fixed ratios to improve sustained attention while reducing jitter burden.

Best Fit Profiles

  • coffee-without-jitters protocols
  • high-cognitive-load work blocks

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