L-Theanine Supplement
How we scored this product Show the full breakdown
Bevisning gates dose: the evidence grade sets the ceiling, and the dose decides how much of that ceiling the product reaches. Value = inverse of price-per-trial-dose-day. Community = mean sentiment of external reviews. Säkerhet caps applied after weighting.
This score is our editorial judgment, not a scientific standard. We combine published evidence, dose, price, transparency, and consumer signals into one composite: this is our method, not a peer-reviewed clinical rating. A higher score means a product does better on the factors we weight, not that it is medically proven to work.
Question 1
Does the molecule work?
Does the molecule work?
The science behind each active ingredient, independent of which brand sells it.
The 'calm alertness' amino acid from green tea.
Question 2
Is this bottle good?
Is this bottle good?
The specific product: dose, price, transparency, and what buyers report.
Question 3
What's the catch?
What's the catch?
Säkerhet flags, transparency gaps, dosing concerns, and recurring buyer complaints.
Quick verdict
The numbers
Data verification
Per-ingredient breakdown
All product data is checked against original sources. Prices, doses, and testing status are updated when product pages change. Bevisning grades are reviewed when new human RCTs are published. Read how we verify.
What's inside
Consumer signals
Consumer signals gathered from 2 platforms.
Low confidence, small sampleConsumer sentiment compiled from 2 public sources (Examine.com, Reddit). Small sample size, treat as directional only.
1 threads discussed · mixed sentiment
Compiled from a Reddit r/Nootropics listing located during manual research; not independently re-verified against the live page at build time.
positive sentiment
Compiled from a Examine.com listing located during manual research; not independently re-verified against the live page at build time.
These are consumer sentiment signals. They do not measure whether the product actually works. See our evidence section for that.
What others say (unverified)
We aggregated external reviews. We didn't check their methodology. None of them are paid placements from us, but we can't guarantee the sources themselves received no product.
One Reddit user says they used Double Wood for Alpha-GPC and L-theanine without issues, describing a fine experience. Elsewhere on Reddit, a separate detailed complaint says a different Double Wood capsule product had no effect at the labeled dose, suggesting inconsistent potency across the line.
Examine's theanine page says the current evidence supports reduced stress and anxiety in acutely stressful situations, plus some cognitive benefits like attention and memory. It reports no known adverse effects or toxicity concerns at supplement doses.
Research behind this product
The studies that established the trial dose and evidence grade for each active ingredient in this product. Click through to read the original paper.
What we could not verify
We list this openly. If a claim isn't backed by a source we can trace, we'd rather flag it than repeat it.
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Trustpilot aggregator3.8/5169 reviews
This is a brand-level customer-service profile for doublewood; it does not isolate L-Theanine Supplement.
verified 2026-08-07Open source → -
Reddit r/Supplements community forummixed sentiment
Community discussion exists, with generally positive comments about L-theanine’s effects on anxiety, stress, and caffeine-related jitters, alongside some reports of tolerance or needing higher doses. No single Reddit thread is treated as a representative product review.
no direct URLchecked 2026-08-07
Redaktionellt notes
Standard 200mg L-theanine, mid-range for the ingredient (typical doses 100-400mg). Also included in Double Wood's Sleep Stack bundle alongside magnesium and apigenin.
Why this scored this way
This Double Wood Supplements L-Theanine Supplement scores 8.2, making it a strong scorer. It delivers the full 200.0mg trial dose of L-Theanine with grade B evidence (promising human data, not yet comprehensive). Transparency is a clear strength (score: 9.0), with third-party testing and a public analysintyg. At $0.17/day it's priced well for what you get.
What drives the score up
- Dose-evidence score of 8.0 reflects good alignment with trial doses.
- Quality transparency of 9.0: tested by independent lab with a public analysintyg.
- Value score of 9.9 at $0.17/day.
- L-Theanine is dosed at the full research level with grade B evidence (promising human data, not yet comprehensive).
What drags it down
- No significant weaknesses identified in the current scoring framework.
Why you'd choose it
- You want good value at $0.17/day.
- You want L-Theanine from a Double Wood Supplements product.
- You prioritise tested by independent lab produkter with public lab certificates.
Why you might skip it
- You want a product in a different category.
- You want a cheaper cognition option.
- You prefer produkter with more consumer feedback.
Where this sits
Spot an error?
If you are the manufacturer or brand owner of L-Theanine Supplement and believe any data on this page is incorrect (wrong dose, wrong ingredient, wrong price, missing certification, outdated status), you can request a correction.
We review every request, verify it against primär sources, and publish any change with a dated note in the version history above. Corrections from brand owners are treated the same as corrections from anyone else: verified before they move.
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