L-Theanine®
Non-Nutrient / Non-BotanicalBrand: SuperiorLabs
Functions
Net Contents
90 Vegetable Capsule(s)
Serving Size
1 Capsule(s)
Servings Per Container
90
Supplement Form
Capsule
Bar Code (UPC/SKU)
8 50569 00619 3
Product Version
THE-90-5
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.
This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.
Supplement Facts
Serving Size: 1 Capsule(s) · 1–2 per day
| Ingredient | Amount Per Serving | |
|---|---|---|
| L-Theanine | 250 mg | — |
Not Present
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
Suggested Use: As a dietary supplement, adults take 1 capsule one to two times daily, or as directed by your health care practitioner. Best when taken with a meal.
Warnings & Precautions
Precautions re: All Other
Caution: Do not exceed recommended dosage.
Precautions re: Pregnant or Nursing or Prescription Medications
Please consult a physician before consuming this product if you are pregnant or nursing, taking medication or have a medical condition.
Precautions re: Children
Not intended for use by individuals under the age of 18. Keep out of reach of children.
Precautions re: All Other
Do not use if safety seal is damaged or missing.
Storage
Storage
Store in a cool, dry place.
Formulation
Formula re: Contains
L-Theanine is an analog of the amino acids L-glutamine and L-glutamic acid. L-theanine supports relaxation and maintains mental clarity. Superior Labs L-Theanine capsules contain 250mg pure L-Theanine, with absolutely no magnesium stearate, dioxides, preservatives, or other potentially harmful artificial ingredients of any kind.
Formulation re: Does NOT Contain
Metal Safe Heavy Metal Tested
Formulation re: Other
Naturally sourced Pure and potent Induces relaxation Supports brain function Supports cardiovascular function Mental & physical calming This product is formulated, developed and manufactured in an Food and Drug Administration-registered and GMP-compliant facility and is 3rd party inspected by a leading compliance authority for superior quality assurance.
Formula re: Contains
Amino acid
Formulation re: Does NOT Contain
Does not contain: magnesium stearate, dioxides or any potentially harmful ingredients of any kind.
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
Seals/Symbols
Metal Safe Heavy Metal Tested GMP Compliant Facility Manufactured in the USA with globally sourced ingredients
Manufacturer & Distributor
Distributor
Superior Labs, LLC.
Park City, UT, 84098
(888) 708-5227
Market Reference
Superior Source L-Theanine 200 mg Instant Dissolve Tablets
Adobe Drugs3.8(7)$21.99Superior Labs GABA Supplement 750mg
Superior Labs$17.37Spring Valley L-Theanine Capsules 100 mg 100 Count
Walmart4.4(307)$6.43LowestVital Nutrients L-Theanine
boulevardcompounding.com4.7(51)$36.99Enzymatic Therapy L-Theanine 180 Veg Capsules
Life Extension4.7(318)$17.24Superior Source Calming Formula 60 Tablets
iHerb4.7(67)$18.99Nootropics Depot L-Theanine Capsules
Nootropics Depot4.5(15)$15.99Natural Vitality CALM Mind Magnesium + L-Theanine Powder
Target4.8(113)$35.99
Where to Buy Locally
Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.
Showing representative supplement & health retailers — search above for stores in your area.
ABP NUTRITION
4.9 (27)Vitamin & Supplements Shop
Unit 21, Festival Park, Ebbw Vale NP23 8FP
Mynutribalance
5.0 (4)Vitamin & Supplements Shop
9 Loftus Cres, Newport NP19 0PG
Holland & Barrett - Cwmbran
4.2 (14)Vitamin & Supplements Shop
Heol Llywelyn Unit 16 South Walk, Sgwar Gwent Sq, Cwmbran NP44 1PU
Quest Vitamins Ltd
5.0 (1)Vitamin & Supplements Shop
Unit 36, Three Elms Trading Estate, Bakers Ln, Hereford HR4 9PU
RightNutri
4.9 (78)Vitamin & Supplements Shop
26 Queenstown Rd, London SW8 3RX
The Natural
4.2 (71)Vitamin & Supplements Shop
26 Church St, Stroud GL5 1JL
Sports Nutrition UK
4.7 (38)Vitamin & Supplements Shop
20 Easton Rd, Bristol BS5 0BY
SF Nutrition
4.8 (32)Vitamin & Supplements Shop
Unit 3, Kenn Court, South Bristol Business Park, Bristol BS4 1UL
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2025-09-25. DSLD Label ID: 338185. 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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