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 Veggie Capsule(s) · 1 per day

Not Present

• 

  Doctor's Best L- Tryptophan 500 mg 90 Veggie Caps

  Vitacost.com4.7(642)

  $19.99
• 

  Doctor's Best L- Tyrosine 500 mg 120 Veggie Caps

  iHerb4.8(1400)

  $14.99
• 

  Doctor's Best 5-HTP Enhanced with 120 Veggie Caps

  Vitacost.com4.8(1000)

  $16.99
• 

  The Vegan Shoppe L- Tryptophan 500mg 120 Veggie Capsules

  The Vitamin Shoppe4.7(45)

  $36.99
• 

  Nutricost L- Tryptophan Capsules

  Target4.1(231)

  $15.95
• 

  L- Tryptophan

  SFI Health

  $43.99
• 

  L-Tryptophan 500mg

  Fusion Specialty Pharmacy

  $52.98
• 

  Nootropics Depot L- Tryptophan Capsules

  Nootropics Depot5.0(1)

  $29.99

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• SupleProducts

  Vitamin & supplements store

  C. Aura, 29738 Torre de Benagalbón, Málaga

  Directions643 05 95 21

• Record Nutrition - Nutrición Deportiva

  3.9 (7)

  Sports nutrition store

  C. Bahamas, 15, 29738 Benagalbón, Málaga

  Directions609 06 10 50

• Orma Life Suplementos Alimenticios

  5.0 (7)

  Vitamin & supplements store

  C. Vencejo, 6, 29730 Rincón de la Victoria, Málaga

  Directions604 44 73 64

• Vitamins Protein

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  Avda. de la Aurora s/n Centro Comercial Larios Local, A402, 29002 Málaga

  Directions952 36 97 20

• NutricionMania

  4.8 (67)

  Sports nutrition store

  Calle Rda., 34, 29730 Rincón de la Victoria, Málaga

  Directions684 26 58 34

• Mr Nutrition El Palo

  4.9 (109)

  Vitamin & supplements store

  Av. Juan Sebastián Elcano, 137, Málaga-Este, 29017 Málaga

  Directions951 45 69 53

• Muscle Cult | Rincón de la victoria

  4.8 (66)

  Sports nutrition store

  C. Arroyo Totalán, 36, Loc 34A planta Baja, 29720 La Cala del Moral, Málaga

  Directions614 44 66 79

• NutricionMania

  4.9 (104)

  Vitamin & supplements store

  P.º de los Tilos, 49, Cruz de Humilladero, 29006 Málaga

  Directions684 26 58 34

• 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

• 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

• Analysis, 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 …

  2018402 citations

• Serotonin, Kynurenine, and Indole Pathways of Tryptophan Metabolism in Humans in Health and Disease

  M Holeček - Nutrients, 2026 - mdpi.com

  … healthy individuals and various physiological and pathological conditions, as well as the use of TRP as a dietary supplement… TRP by tryptophanase (L-tryptophan indole-lyase) to indole, …

  202613 citations

• Tryptophan: biochemical and health implications

  H Sidransky - 2001 - api.taylorfrancis.com

  … Overall, it becomes apparent that L-tryptophan and its … The role of L-tryptophan in health and disease has become … Dr. Sidransky has served on the editorial boards of several …

  200146 citations

• L-Tryptophan: Basic Metabolic Functions, Behavioral Research and Therapeutic Indications

  DM Richard, MA Dawes, CW Mathias… - International …, 2009 - journals.sagepub.com

  … uses of L-tryptophan, particularly L-tryptophan depletion, and on clinical trials that have been conducted using L-tryptophan supplementation… are necessary for general healthy nutrition. …

  2009981 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: 302685. 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.