Dietary Supplement Label Database

L-Theanine

On market
Photo of the SuperiorLabs L-Theanine label
Photo of the label, from the NIH's original record · Open full size ↗
Supplement Facts
Serving Size 1 Capsule(s)
Servings Per Container 90
Amount Per Serving% Daily Value
L-Theanine250 mg†
† Daily Value not established.

Other ingredients: Cellulose, Rice Concentrate

% Daily Values for: Adults and children 4 or more years of age.

Where this label comes from

An original label of the NIH's Dietary Supplement Label Database, entered there on 25 September 2025, shown here as it was entered. The NIH's record · picture of the label (PDF)

General information

Product name
L-Theanine
Brand
SuperiorLabs
Barcode (UPC)
8 50569 00619 3
Net contents
90 Vegetable Capsule(s)
Market status
On market
DSLD ID
338185

Classification

Supplement form
Capsule
Product type
Non-Nutrient/Non-Botanical
Claim types on the label
Nutrient, All Other, Structure/Function
Intended for
Adult (18 - 50 Years)

Label statements

Formula: 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.

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.

Precautions: All Other: Caution: Do not exceed recommended dosage.

Precautions: 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: Children: Not intended for use by individuals under the age of 18. Keep out of reach of children.

Storage: Store in a cool, dry place.

Precautions: All Other: Do not use if safety seal is damaged or missing.

Formulation: Does NOT Contain: Metal Safe Heavy Metal Tested

Formula: Contains: Amino acid

FDA Statement of Identity: Dietary Supplement

Formulation: Does NOT Contain: Does not contain: magnesium stearate, dioxides or any potentially harmful ingredients of any kind.

Brand information

Manufactured exclusively for: Superior Labs, LLC., Park City, UT

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