Theanine 200 mg®
Non-Nutrient / Non-BotanicalBrand: Jarrow Formulas
Net Contents
60 Veggie Cap(s)
Serving Size
1 Capsule(s)
Servings Per Container
60
Supplement Form
Capsule
Bar Code (UPC/SKU)
7 90011 15057 2
Product Version
02318THE200 PROD # 115057
Label Analysis
Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.
Single-ingredient formula listed in Supplement Facts.
Every active ingredient discloses a specific amount per serving.
Label states: Vegan, Vegetarian, Non-GMO, Gluten-Free.
This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.
Allergen Guide
Free From
- Wheat
Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.
Supplement Facts
Serving Size: 1 Capsule(s) · 1 per day
| Ingredient | Amount Per Serving | |
|---|---|---|
| L-Theanine | 200 mg | — |
Not Present
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
Usage: Take 1 capsule per day with water or juice on an empty stomach or as directed by your qualified healthcare professional.
Warnings & Precautions
Precautions re: Pregnant or Nursing or Prescription Medications
Note: If you have a medical condition, are pregnant, lactating, trying to conceive, under the age of 18, or taking medications, consult your healthcare professional before using this product.
Precautions re: Children
Note: If you have a medical condition, are pregnant, lactating, trying to conceive, under the age of 18, or taking medications, consult your healthcare professional before using this product.
Precautions re: Children
Keep out of the reach of children.
Formulation
Formula re: Contains
Theanine is a unique amino acid found almost exclusively in green tea that exerts beneficial effects on brain metabolism. Theanine induces relaxation without causing drowsiness, as measured by increased generation of alpha-waves. Theanine may improve learning ability and sensations of pleasure by affecting dopamine and serotonin neurotransmitters in the brain. Also, theanine exerts protective effects on the brain by mitigating glutamate toxicity. Jarrow Formulas Theanine is made enzymatically from amino acids and is identical to the theanine found in green tea.
Formulation re: Vegetarian/Vegan
Suitable for Vegetarians/Vegans.
Formula re: Contains
Suntheanine
Formulation re: Does NOT Contain
No wheat, gluten, soybeans, dairy, egg, fish/shellfish, or peanuts/tree nuts.
Formulation re: Does NOT Contain
Non GMO
FDA Statements
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
FDA Statement of Identity
Dietary Supplement
Other Label Statements
General Statements: All Other Content
Neurologically-Active Amino Acid Promotes Relaxation Supports Learning Ability
Brand IP Statement(s) re: (c), (TM), (SM)
Suntheanine is a registered trademark of Taiyo International, Inc.
Seals/Symbols
Vegan V Veggie Caps V Non GMO Certified by NSF www.nsfnongmo.org
Brand IP Statement(s) re: (c), (TM), (SM)
2018 Jarrow Formulas
General: Product/Version Code
02318THE200 PROD # 115057
Manufacturer & Distributor
Distributor
Jarrow Formulas Superior Nutrition and Formulation
P.O. Box 35994, Los Angeles, CA, 90035-4317
Market Reference
Jarrow Formulas Theanine 200 mg. 60 Capsules
superbhb.co.uk4.8(1000)$35.36
Jarrow Formulas Jarrow Theanine 200 mg 60 Caps
Eddie's Health Shoppe4.8(1000)$24.99
Jarrow Formulas Theanine 100 mg 60 Capsules
Target4.8(989)$19.48Lowest
JARROWS Jarrow Formulas Theanine 200 mg L-Theanine for relaxation and Wellbeing
GoSupps.com4.8(1000)$89.99
Jarrow Formulas Theanine 200mg High Dosed 60 Vegan Capsules
GoSupps.com4.8(1000)$79.99
Jarrow Formulas Theanine 100mg Apple Flavor 60 Gummies
The Vitamin Shoppe4.8(26)$26.99
Jarrow Formulas GABA Soothe Capsules
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Jarrow Formulas - Gaba Soothe
Pure Prescriptions4.7(238)$28.99
Where to Buy Locally
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The Vitamin Shoppe
4.5 (173)Vitamin & supplements store
2535 Richmond Ave, Staten Island, NY 10314
GNC
4.3 (73)Vitamin & supplements store
2040 Forest Plaza, Staten Island, NY 10303
Underground Nutrition Garwood
5.0 (160)Vitamin & supplements store
331 South Ave D-E, Garwood, NJ 07027
GNC
4.3 (23)Vitamin & supplements store
321 NJ-440 Spc 9, Jersey City, NJ 07305
GNC
4.8 (329)Vitamin & supplements store
903 Bayonne Crossing Way, Bayonne, NJ 07002
The Vitamin Shoppe
4.6 (74)Vitamin & supplements store
2602 Hylan Blvd Suite A, Staten Island, NY 10306
The Vitamin Shoppe
4.5 (61)Vitamin & supplements store
480 86th St, Brooklyn, NY 11209
GNC
4.5 (128)Vitamin & supplements store
432 86th St, Brooklyn, NY 11209
Research & Studies
L-Theanine Nootropic Review: Benefits, Side Effects & Dosage
HMDLT Cost - nootropicology.com
… health food stores, online retailers, and supplement shops. Reputable brands like NOW Foods, Jarrow Formulas… Many studies have shown benefits at 200 mg per dose. Some users find …
Coenzyme Q10 Protects A Breaking Heart
A Thomas - jarrow.com
A landmark study published in the Journal of the American College of Cardiology: Heart Failure reported supplementation with coenzyme Q 10(CoQ 10) reduced medical complications …
The beneficial health effects of green tea amino acid l‐theanine in animal models: Promises and prospects for human trials
J Williams, D Sergi, AJ McKune… - Phytotherapy …, 2019 - Wiley Online Library
… Supplementation regimens in mice have also shown that l-THE at a dose of 80 mg/kg and cysteine (200 mg/kg) per day can enhance serum antigen-specific IgG production by …
201982 citationsl-theanine: From tea leaf to trending supplement–does the science match the hype for brain health and relaxation?
R Dashwood, F Visioli - Nutrition Research, 2025 - Elsevier
… of this nutraceutical supplement marketed for brain health and … the use of l-theanine supplements at pharmacologic doses by … this trending supplement for brain health and relaxation. …
202525 citationsImprovement of both human and animal memory by synergy between fructooligosaccharide and L‐theanine function establishing a safe and effective food supplement
Y Li, Y Jiang, Z Zhang, VIP Loake, X Bao… - Food science & …, 2024 - Wiley Online Library
… of healthy adults after 1 month of consumption. Our results suggest that a combination of FOS and L-theanine … Also, the KM mice administered with 200 mg/kg L-theanine exhibited both …
202412 citationsKeyora Research Notes Series (L-Theanine Episode 10): Mapping L-Theanine to Your Neurobiology-Safety, Dosage, and Functional Timing Protocols
J Xu - Keyora Nutritional Neurology, 2025 - academia.edu
… Sixteen healthy volunteers received alprazolam (1 mg), L-theanine (200 mg) or placebo in a … windows: 150–200 mg before high-stakes decisions 200–300 mg for burnout prevention & …
2025
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2019-04-25. DSLD Label ID: 201846. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.
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