Non-Nutrient/Non-Botanical

L-Theanine

by SuperiorLabs · Capsule

Supplement facts from the label of L-Theanine by SuperiorLabs: L-Theanine 250 mg.

Label of L-Theanine, SuperiorLabs
Label image: NIH DSLD · full label (PDF)
Serving size1 Capsule(s)
Servings per container90
Most servings a day on the label2
TypeNon-Nutrient/Non-Botanical
Barcode850569006193
Label recordDSLD 338185 · entered 2025-09-25

Supplement Facts

IngredientPer serving% DVUpper limit (adults)
L-Theanine250 mg——

Upper limits: NIH ODS Fact Sheets for Health Professionals. Compared only where the unit converts and the limit applies to the form on the label.

On the label

For: Adult (18 - 50 Years)

Claim types: Nutrient · All Other · Structure/Function

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.

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.

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.

Storage: Store in a cool, dry place.

This page repeats what the label says and the official upper limits for healthy adults. It is not medical advice: ask a doctor, pharmacist or registered dietitian about your own intake, especially if you are pregnant, take medicines or have a health condition.

Label data: NIH Office of Dietary Supplements, Dietary Supplement Label Database (dsld.od.nih.gov), public domain. Upper limits: NIH ODS Fact Sheets for Health Professionals (values from the Institute of Medicine, Food and Nutrition Board).