L-Tryptophan 500 mg®
Botanicals with NutrientsBrand: Nutricost
Functions
Net Contents
120 Capsule(s)
Serving Size
1 Capsule(s)
Servings Per Container
120
Supplement Form
Capsule
Bar Code (UPC/SKU)
7 02669 93307 0
Product Version
402897 NTC.2.22
Label Analysis
Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.
2 distinct active ingredients are disclosed in Supplement Facts.
Every active ingredient discloses a specific amount per serving.
Label states: 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
- Gluten
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-Tryptophan | 500 mg | — |
| Bioperine(Black Pepper Fruit Extract) | 5 mg | — |
Not Present
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
Suggested use: As a dietary supplement, take 1 capsule daily with 8-12oz of water or as directed by your healthcare professional.
Warnings & Precautions
Precautions re: Children
Warning: For healthy individuals 18 years and older. Keep out of reach of children.
Precautions re: Pregnant or Nursing or Prescription Medications
Consult a healthcare professional prior to use if you are pregnant or nursing, taking medication, or have a medical condition.
Precautions re: All Other
Do not use if safety seal is broken or missing.
Storage
Storage
Note: Store in a cool, dry place.
Formulation
Formulation re: Other
Non-GMO Gluten-free
Formulation re: Other
Made and quality tested in the USA with globally sourced ingredients.
Formula re: Contains
L-Tryptophan 500mg per serving
Formulation re: Does NOT Contain
Non-GMO product
FDA Statements
FDA Statement of Identity
Dietary Supplement
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.
Other Label Statements
Seals/Symbols
Nutricost Quality Guaranteed Third Party Tested GMP Compliant Facility
Brand IP Statement(s) re: (c), (TM), (SM)
BioPerine is a Trademark of Sabinsa Corporation.
Manufacturer & Distributor
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.
Nootropic Nation, LLC
5.0 (1)Vitamin & supplements store
176 Mulberry St APT 5, New York, NY 10013
GNC
4.7 (197)Vitamin & supplements store
2 Pennsylvania Plaza Ste 29B, New York, NY 10121
Nutricosceuticals
Vitamin & supplements store
156 Mott St, New York, NY 10013
Pure Essentials Supplements
5.0 (1)Vitamin & supplements store
121 Varick St, New York, NY 10013
GNC
4.4 (88)Vitamin & supplements store
753 Broadway Spc 753, New York, NY 10003
The Vitamin Shoppe
4.4 (98)Vitamin & supplements store
257 8th Ave, New York, NY 10011
GNC
4.0 (224)Vitamin & supplements store
134-136 Fulton St, New York, NY 10038
The Vitamin Shoppe
4.3 (163)Vitamin & supplements store
385 5th Ave, New York, NY 10016
Research & Studies
A systematic review of the effect of L-tryptophan supplementation on mood and emotional functioning
AM Kikuchi, A Tanabe, Y Iwahori - Journal of dietary supplements, 2021 - Taylor & Francis
… This systematic review includes 11 RCTs that examined the effects of TRP intake on positive and negative mood in healthy adult populations. We have targeted healthy adult men and …
2021109 citationsAnalysis, nutrition, and health benefits of tryptophan
M Friedman - International Journal of Tryptophan Research, 2018 - journals.sagepub.com
… of some of the reported health-promoting aspects of … Here, tryptophan refers to l-tryptophan and the isomeric form … the dietary supplementation of tryptophan to healthy adults (n …
2018398 citationsHealth benefits of tryptophan in children and adults
BN Nayak, HS Buttar - J. Pharm. Sci. Technol. Manage, 2015 - pharmacy.nmims.edu
… overview of the role of L-tryptophan in the synthesis of serotonin, … trials suggest that L-tryptophan supplementation may be … [7], the kynurenine pathway depicts an aerobic L-tryptophan …
201512 citationsNewer Technologies for Use and Delivery of Nutraceuticals to Cure Insomnia and Induce Sleep
A Mukherjee - Nutraceuticals in Insomnia and Sleep Problems, 2025 - taylorfrancis.com
… “Nutricost L-Tryptophan Capsules” are easy to swallow capsules with 500 mg L-Tryptophan … the nutraceuticals proving to be a savior to numerous health concerns, there are a lot of key …
2025Risk Assessment of" Other Substances"–L-tryptophan
K Holvik, L Frøyland, M Haugen, M Løvik… - European Journal of …, 2020 - hal.science
… well-designed supplementation studies with L-tryptophan in … adverse health effects of L-tryptophan supplementation in … possible adverse effects of L-tryptophan supplements, due to the …
20202 citationsThe Effect of Griffonia simplicifolia on Pain Intensity, Central and Peripheral Sensitization, and Pain Modulation in Healthy Volunteers—A Randomized …
AJ Schlemmer, S Hammer, S Fandler-Höfler… - Nutrients, 2026 - mdpi.com
2026
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2024-10-24. DSLD Label ID: 306325. 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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