L-Tryptophan 500 mg®
Amino Acids & ProteinBrand: Jarrow Formulas
Functions
Net Contents
60 Veggie Capsule(s)
Serving Size
1 Capsule(s)
Servings Per Container
60
Supplement Form
Capsule
Bar Code (UPC/SKU)
7 90011 15056 5
Product Version
03223TRYP PROD # 115056
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.
Label states: Vegan, Vegetarian, 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
- Wheat
- 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 | — |
Not Present
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
Suggested Use: Adults take 1 capsule once a day on an empty stomach 30 minutes before sleep with water or fruit juice or as directed by your qualified healthcare professional.
Warnings & Precautions
Precautions re: Pregnant or Nursing or Prescription Medications
Warning: Do not take this product if you are taking any SSRIs (selective serotonin reuptake inhibitors) or MAOIs (monoamine oxidase inhibitors). Consult a healthcare professional before using this product if you are trying to conceive, pregnant, or lactating, under the age of 18, or have a medical condition; if adverse reactions occur, discontinue use.
Precautions re: Children
Consult a healthcare professional before using this product if you are trying to conceive, pregnant, or lactating, under the age of 18, or have a medical condition; if adverse reactions occur, discontinue use. Keep out of the reach of children.
Precautions re: All Other
This product is for occasional sleeplessness. Do not use if safety seal is damaged or missing.
Storage
Storage
Store in a cool, dry place.
Formulation
Formula re: Contains
Jarrow Formulas L-tryptophan is an essential amino acid that cannot be synthesized by the body, but must be obtained from food or supplements. L-tryptophan is converted to serotonin (5-hydroxytryptamine) and melatonin in the body, which plays an important role in supporting a balanced mood and restful sleep.
Formulation re: Vegetarian/Vegan
Vegan
Formulation re: Other
Relaxation Supports production of serotonin (relaxation, balanced mood) & melatonin (sleep)
Formulation re: Does NOT Contain
Gluten free
Formulation re: Does NOT Contain
No wheat, gluten, soybeans, dairy, egg, fish/shellfish, peanuts/tree nuts or sesame. IGEN Non-GMO tested
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
IGEN Non-GMO tested
Brand IP Statement(s) re: (c), (TM), (SM)
Copyright 2023 Jarrow Formulas
General Statements: All Other Content
Sleep support
Manufacturer & Distributor
Distributor
Jarrow Formulas, Inc.
Sherman Oaks, CA, 91403, USA
1-866-459-4154
Where to Buy Locally
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GNC
4.4 (18)Vitamin & supplements store
2298 E Carson St, Long Beach, CA 90807
Wholesale Nutrition Center
4.9 (109)Vitamin & supplements store
4704 D St, Lakewood, CA 90712
Nutrishop Lakewood
4.7 (15)Vitamin & supplements store
5505 Del Amo Blvd, Lakewood, CA 90713
The Vitamin Shoppe
4.4 (129)Vitamin & supplements store
4327 Candlewood St, Lakewood, CA 90712
Circle Nutrition Center
4.8 (24)Vitamin & supplements store
1819 Ximeno Ave, Long Beach, CA 90815
Healthway Foods
4.8 (32)Vitamin & supplements store
535 E Bixby Rd, Long Beach, CA 90807
GNC
4.0 (34)Vitamin & supplements store
30 Lakewood Mall, Lakewood, CA 90712
The Vitamin Shoppe
4.5 (136)Vitamin & supplements store
12136 Lakewood Blvd, Downey, CA 90242
Research & Studies
Tryptophan As A Nutraceutical–Clinical And A Critical
MR Suchitra, P Krubaa, S Parthasarathy - European Journal of Molecular & … - academia.edu
… L Tryptophan is available in the commercial product as 125 mg/ capsule or 500 mg/ capsule … was lowered in preeclamptic compared with the healthy placental arteries, consistent with …
Successful discontinuation of chronic polypsychotropic regimen and resolution of withdrawal syndrome through nutrition and lifestyle interventions: A case …
K Brogan, A Siefert - Adv Mind Body Med, 2019 - kajabi-storefronts-production.s3 …
… The patient took 500-1500 mg nightly of L-tryptophan for SNRI withdrawal support (Pure … a medical disability leave. She received 0.5 mg Klonopin and restarted Lamictal at 25 mg. …
20193 citationsTHE MOOD CURE
TOT CHARGE - tantor-site-assets.s3.amazonaws …
… if it would be appropriate for you to take 5-HTP, L-tryptophan, L-tyrosine, D-phenylalanine or L-… supplements used at my clinic: 800-7339293 or consult an experienced alternative health …
Analysis, nutrition, and health benefits of tryptophan
M Friedman - International Journal of Tryptophan Research, 2018 - journals.sagepub.com
… Here, tryptophan refers to l-tryptophan and the isomeric form produced during food … in the absence of l-tryptophan; ie, the mice must meet the entire need for l-tryptophan from the d-…
2018402 citations… in the plasma tryptophan-to-large-neutral-amino-acids ratio attenuates the effects of L-tryptophan on gut hormones and energy intake in healthy males: a randomized …
J Anjom-Shoae, M Hajishafiee, PCE Fitzgerald… - The American journal of …, 2025 - Elsevier
Background L-tryptophan (“Trp”) and L-leucine (“Leu”), when administered intraduodenally, increase plasma cholecystokinin (CCK) and glucagon-like peptide 1 (GLP-1) and stimulate …
20253 citationsHealth benefits of tryptophan in children and adults
BN Nayak, HS Buttar - J. Pharm. Sci. Technol. Manage, 2015 - pharmacy.nmims.edu
… This mini-review provides a brief overview of the role of L-tryptophan in the synthesis of serotonin, quinolinic acid, and kynurenic acid, which are critically important for neuronal …
201512 citations
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2024-01-24. DSLD Label ID: 307642. 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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