Equipment Reference
Double Wood Supplements
Double Wood L-Theanine
200mg capsules for Huberman sleep stack and caffeine pairing
Double Wood L-Theanine provides 200mg per capsule, the standard nootropic and sleep stack dose. Used in Huberman's pre-bed protocol (100–200mg with apigenin and magnesium) and the classic 2:1 theanine+caffeine focus stack. Third-party tested, excellent value.
Health Disclaimer
This content is for general informational and educational purposes only. It is not medical advice, diagnosis, or treatment. Consult a qualified healthcare provider before starting any supplement, peptide, or health protocol. Read our full health disclaimer.
Typical price: $15 – $22 USD / 120 capsules
Ships primarily within the United States.
How It Works
L-theanine crosses the blood-brain barrier and modulates GABA, dopamine, and serotonin pathways. Increases alpha wave activity (8–13 Hz) associated with relaxed alertness. At bedtime doses, supports GABAergic sleep onset without next-day grogginess.
Alpha Wave Promotion
200mg increases alpha brain waves within 30–45 minutes for calm alertness without sedation.
Sleep Stack Component
100–200mg before bed as part of Huberman's apigenin + magnesium + theanine cocktail.
Caffeine Smoothing
Pair 200mg theanine with 100mg caffeine to eliminate jitters while preserving focus.
What You'll Experience
Acute
30–60 minutesGentle calm, reduced mental chatter. Smooth focus when paired with caffeine.
Sleep Stack
NightlyEasier sleep onset when combined with apigenin and magnesium.
Daily Use
OngoingNo tolerance buildup. Safe for long-term daily use.
Benefits
Calm Focus
Moderate Evidence200mg promotes alpha waves for relaxed alertness.
Sleep Support
Moderate EvidenceKey component of Huberman's pre-bed supplement stack.
Caffeine Synergy
Moderate EvidenceEliminates coffee jitters at 2:1 theanine:caffeine ratio.
Risks & Considerations
Blood Pressure
low riskMay slightly lower BP. Monitor if on antihypertensive medication.
Community Reviews
Synthesized consensus from Reddit, forums, and expert sources.
Double Wood is the value pick for L-theanine. '200mg theanine + coffee is the first stack everyone should try.'
- ·Best value for 200mg dose
- ·Essential Huberman sleep stack component
- ·Pair with caffeine for smooth focus
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