Food supplement · Swanson
Suntheanine L-Theanine 100 mg
Why Swanson l-theanine?
- 100 mg suntheanine per serving
From the label’s panel and printed marks — not its marketing.
Sold as food, not medicine — no regulator checked that it works
Per serving · 1 Veggie Capsule(s)
At a glance
From the label as printed · NIH DSLD
Herbal supplement · Capsule
Per serving100 mg suntheanine
60 servings per container
As a dietary supplement, take one veggie capsule one to two times per day with water before meals.
One serving: 1 Veggie Capsule(s)
No third-party testing mark on the label
Marks like USP Verified mean an independent lab checked that the product contains what the label says.
- Food supplement — claims are the manufacturer’s
- Adult (18 - 50 Years)
Supplement Facts
Supplement Facts
Serving size 1 Veggie Capsule(s)
Servings per container 60
| Amount per serving | % DV | |
|---|---|---|
| Suntheanine (L-Theanine) | 100 mg | † |
† Daily Value not established.
Other ingredients: Brown Rice Flour, Hypromellose, Magnesium Stearate
Transcribed from the label by the NIH Office of Dietary Supplements. What a label says is not independently verified. See the original label
How to take it
- Suggested use: As a dietary supplement, take one veggie capsule one to two times per day with water before meals.
The manufacturer’s directions, from the label.
Warnings on the label
- Warning: For adults only. Keep out of reach of children.
- Consult your physician before using this or any product if you are pregnant or nursing, taking medication, or have a medical condition.
- Do not use if seal is broken.
What no one has checked
Supplements are regulated as food, not as medicine. No regulator has assessed whether this product works, and manufacturing standards vary widely between brands and countries.
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Details
| Brand | Swanson |
|---|---|
| UPC | 0 87614 02110 2 |
| NIH label ID | 308776 |
| Label recorded | 2024-12-21 |
Source: Dietary Supplement Label Database · NIH Office of Dietary Supplements · retrieved 2026-09-21 · not reviewed by a nutrition professional