L-Tryptophan 500 mg®

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

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.

Serving Size: 1–2 Capsule(s) · 2–3 per day

Not Present

• 

  Best Naturals L-Tryptophan mg 60

  Best Naturals4.5(135)

  $9.99
• 

  Best Naturals L- Tryptophan 500 Mg 120 Capsules

  Target

  $26.95
• 

  NOW Foods L- Tryptophan Relaxation Support Capsules

  Vitacost.com4.6(4100)

  $13.46
• 

  Source Naturals L Tryptophan

  Walmart - Health Chest4.6(1100)

  $10.95
• 

  365 by Whole Foods Market L- Tryptophan 60 Veggie Capsules

  Whole Foods Market

  $18.49
• 

  L-Tryptophan Pure Encapsulations

  Supplement First4.6(42)

  $124.50
• 

  Source Naturals L-Tryptophan 500mg 30 Cap

  Four Seasons Natural Foods4.6(1100)

  $9.59
• 

  Nutricost L- Tryptophan Capsules

  Target4.1(231)

  $15.95

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.

• Grampian Health Store

  4.8 (40)

  Vitamin & Supplements Shop

  34 Market St, Aberdeen AB11 5PL

  Directions01224 590886

• Holland & Barrett - Aberdeen Trinity

  4.0 (20)

  Vitamin & Supplements Shop

  Unit 2, Trinity Centre, 155 Union St, Aberdeen AB11 6BD

  Directions0330 058 2640

• TheHealthSource

  5.0 (1)

  Vitamin & Supplements Shop

  37 Sheddocksley Dr, Aberdeen AB16 6PA

  Directions

• Nature's Larder

  4.8 (37)

  Health food shop

  60 Holburn St, Aberdeen AB10 6BX

  Directions01224 588120

• Phyte Club

  5.0 (24)

  Health and beauty shop

  288B N Deeside Rd, Cults, AB159SB AB15 9SB

  Directions07503 804445

• Salve Supplements

  Health food shop

  46b Queen's Ln N, Aberdeen AB15 4DY

  Directions

• Holland & Barrett - Aberdeen

  4.0 (26)

  Vitamin & Supplements Shop

  Unit E4, St Nicholas Centre, Flourmill Ln, Aberdeen AB10 1HW

  Directions0330 058 2640

• Orac Health

  Vitamin & Supplements Shop

  12 Urquhart Terrace, Aberdeen AB24 5NG

  Directions

• Effectiveness of Silymarin, Sulforaphane, Lycopene, Green Tea, Tryptophan, Glutathione, and Escin on Human Health: A Narrative Review.

  F Sebastiani, C D'Alterio, C Vocca, L Gallelli… - Uro, 2023 - search.ebscohost.com

  … effect of dietary supplementation with seven active principles, ie, lycopene, sulforaphane, silymarin, glutathione, escin, tryptophan, and green tea catechins, on human health. Methods: …

  202310 citations

• 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 citations

• l-Tryptophan

  BMD Knapp, MJ Cupp, TS Tracy - … Supplements: Toxicology and Clinical …, 2003 - Springer

  … ill patients who might be of generally worse health than controls and therefore more likely to use a dietary supplement such as L-tryptophan. Of the patients identified with eosinophil …

  20035 citations

• 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

• Health 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

• Tryptophan and its role in sleep and mood

  P Yousef, J Rosen, C Shapiro - Studies in Natural Products Chemistry, 2024 - Elsevier

  … It is consumed from different food sources in the form of L-tryptophan. In this chapter, we review the … In the pediatric population, l-tryptophan can be safely and effectively used to manage …

  202420 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2022-06-16. DSLD Label ID: 270647. 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.