| Ironnaturally occurring | 575 mcg | 3% |
| L-Tryptophan | 1.5 g | † |
Other ingredients: Gelatin, Magnesium Stearate
% 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 March 2025, shown here as it was entered. The NIH's record · picture of the label (PDF)
General information
- Product name
- L-Tryptophan Extra Strength 1500 mg
- Brand
- BRI Nutrition
- Barcode (UPC)
- X001F6PNP1
- Net contents
- 120 Capsule(s)
- Market status
- On market
- DSLD ID
- 326532
Classification
- Supplement form
- Capsule
- Product type
- Other Combinations
- Claim types on the label
- Nutrient, All Other, Structure/Function
- Intended for
- Adult (18 - 50 Years), Gluten Free, Dairy Free, Sugar Free
Label statements
Directions: Suggested use: 1 capsult three times daily between meals and preferably with fruit juice or, to support restful sleep, take 3 capsules before bed.
Formula: Contains: What it is: The essential amino acid L-tryptophan helps support relaxation, restful sleep, and positive mood. It plays a part in the synthesis of both melatonin and serotonin, hormones involved with mood and stress response and sleep/wake cycles. L-Tryptophan also supports immune functions because it is the body's precursor to the kynurenines that regulate immunity. If needed, L-Tryptophan converts to niacin in the body, which supports circulation, a healthy nervous system, the metabolism of food, and the production of hydrochloric acid for the digestive system.
Formula: Contains: 1500mg L-Tryptophan
FDA Statement of Identity: Dietary Supplement
Formulation: Does NOT Contain: Contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.
Precautions: Pregnant or Nursing or Prescription Medications: Warning: If you are pregnant, may become pregnant, breastfeeding, or are taking medications such as SSRIs or MAOIs, consult your health care professional before using this product.
Storage: Store in a cool, dry place.
Brand information
Distributed by: BRI Nutrition LLC, New York, NY
More labels from BRI Nutrition
Labels only: each label is shown as printed on the bottle, with no grades, rankings or advice. A label in this database is not an endorsement of the product. Read the label on the bottle you buy: makers change their formulas. Reverse Age Lab is not affiliated with, or endorsed by, the National Institutes of Health or its Office of Dietary Supplements. The original labels come from the NIH’s public-domain data; the labels since are read by us. Search the Dietary Supplement Label Database.