Sports nutrition · XYMOGEN
L-Theanine
Why XYMOGEN l-theanine?
- 400 mg suntheanine per serving
- Does Not Contain: Wheat, gluten, corn, yeast, soy, animal and dairy products, fish, shellfish, peanuts, tree nuts, egg, sesame, ingredients derived from genetically modified organisms (GMOs), artificial colors, and artificial sweeteners.
From the label’s panel and printed marks — not its marketing.
Sold as food, not medicine — no regulator checked that it works
Per serving · 1–2 Capsule(s)
At a glance
From the label as printed · NIH DSLD
Protein powder · Capsule
Per serving400 mg suntheanine
60 servings per container
Take one to two capsules twice daily, or as directed by your healthcare professional.
One serving: 1–2 Capsule(s)
No third-party testing mark on the label
Marks like NSF Certified for Sport or Informed Sport mean batches are tested for banned substances. Their absence does not mean a product is contaminated — only that nobody independent has said it isn’t.
- Sports nutrition — claims are the manufacturer’s
- Does Not Contain: Wheat, gluten, corn, yeast, soy, animal and dairy products, fish, shellfish, peanuts, tree nuts, egg, sesame, ingredients derived from genetically modified organisms (GMOs), artificial colors, and artificial sweeteners.
- Vegetarian
- Adult (18 - 50 Years)
Supplement Facts
Supplement Facts
Serving size 1–2 Capsule(s)
Servings per container 60
| Amount per serving | % DV | |
|---|---|---|
| Suntheanine (L-Theanine) | 400 mg | † |
† Daily Value not established.
Other ingredients: Hypromellose, Water, Microcrystalline Cellulose
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
- Directions: Take one to two capsules twice daily, or as directed by your healthcare professional.
The manufacturer’s directions, from the label.
Warnings on the label
- Consult your healthcare professional prior to use.
- Individuals taking medication should discuss potential interactions with their healthcare professional.
- Do not use if tamper seal is damaged.
- Storage: Keep closed in a cool, dry place out of reach of children.
What no one has checked
Contents are declared by the manufacturer and are not verified by a regulator. Independent testing has repeatedly found amounts that differ from the label, and products that contain substances banned in sport. Third-party certification, where a product has it, is shown on this page.
Details
| Brand | XYMOGEN |
|---|---|
| UPC | 8 71149 00239 8 |
| NIH label ID | 303742 |
| Label recorded | 2023-12-14 |
Source: Dietary Supplement Label Database · NIH Office of Dietary Supplements · retrieved 2026-09-21 · not reviewed by a nutrition professional