L-Tryptophan 500 mg®
Amino Acids & ProteinBrand: Jarrow Formulas
Functions
Net Contents
60 Veggie Cap(s)
Serving Size
1 Capsule(s)
Servings Per Container
60
Supplement Form
Capsule
Bar Code (UPC/SKU)
7 90011 15056 5
Product Version
12518TRYP 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
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
Usage: Take 1 capsule 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). If you have a medical condition, are pregnant, lactating, trying to conceive, under the age of 18, or taking medications, consult your healthcare professional before using this product.
Precautions re: Children
If you have a medical condition, are pregnant, lactating, trying to conceive, under the age of 18, or taking medications, consult your healthcare professional before using this product.
Precautions re: Children
Keep out of the reach of children.
Storage
Storage
Store in a cool, dry place.
Formulation
Formula re: Contains
L-tryptophan is an essential amino acid and hence cannot be synthesized by the body, but must be obtained from food or supplements. Because L-tryptophan is converted to serotonin (5-hydroxytryptamine) and melatonin in the body, it plays an important role in promoting relaxation, restful sleep and positive mood.
Formulation re: Other
L-tryptophan may also help in reducing carbohydrate cravings.
Formulation re: Other
Jarrow Formulas L-Tryptophan TryptoPure is manufactured at a GMP facility via fermentation of vegetable materials.
Formulation re: Other
Meets USP Standard For Relaxation, Positive Mood & Sleep
Formulation re: Does NOT Contain
Non GMO
Formulation re: Does NOT Contain
No wheat, gluten, soybeans, dairy, egg, fish/shellfish, or peanuts/tree nuts.
Formulation re: Vegetarian/Vegan
Suitable for vegetarians/vegans.
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
Brand IP Statement(s) re: (c), (TM), (SM)
TryptoPure is a registered trademark of Ajinomoto Co., Inc.
Seals/Symbols
V Vegan Veggie Cap Non GMO Certified by NSF. www.nsfnongmo.org
Brand IP Statement(s) re: (c), (TM), (SM)
2018 Jarrow Formulas
Manufacturer & Distributor
Distributor
Jarrow Formulas Superior Nutrition and Formulation
P.O. Box 35994, Los Angeles, CA, 90035-4317
Market Reference
Jarrow Formulas L- Tryptophan Peptide 60 Tablets
personalpower4.4(7)$19.95Jarrow Formulas L- Tryptophan 500mg 60 Capsules
biomall.bg4.5(8)$36.11Life Extension L- Tryptophan 500 mg 90 Vegetarian Capsules
iHerb4.7(505)$24.75L-Tryptophan 500mg
Fusion Specialty Pharmacy$52.98L- Tryptophan 500 mg 60 Quick Release Capsules
Walmart - PIPING ROCK HEALTH PRODUCTS, LLC4.6(7)$9.99LowestL-Tryptophan 500 mg
Natural Wellness Corner4.7(143)$23.00Protocol For Life Balance L-Tryptophan 500 mg
boulevardcompounding.com4.7(143)$22.99Bestvite's L- Tryptophan 500mg (120 Vegetarian Capsules)
Bestvite4.8(10)$16.99
Where to Buy Locally
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Arbor Vitamins
5.0 (13)Vitamin & Supplements Shop
128 City Rd, London EC1V 2NX
Power Up Supplement
4.9 (431)Vitamin & Supplements Shop
601 Lea Bridge Rd, London E10 6AJ
NutraHealth365
4.3 (3)Vitamin & Supplements Shop
Office #3260, 182-184 High St N, London E6 2JA
ITL Health
5.0 (37)Vitamin & Supplements Shop
50 Broadway, London SW1H 0BL
Herbalife Online Webshop
4.9 (94)Vitamin & Supplements Shop
776-778 Barking Rd, London E13 9PJ
Usana Independent Distributor True Health London
Vitamin & Supplements Shop
9 Isom Cl, London E13 8RR
Holland & Barrett - Upton Park
3.5 (44)Vitamin & Supplements Shop
370, 372 Green St, London E13 9AP
British Supplements
3.4 (275)Vitamin & Supplements Shop
34, New House, 67-68 Hatton Garden, London EC1N 8JY
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 2019-12-22. DSLD Label ID: 212245. 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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