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

• 

  The Vitamin Shoppe L-Tryptophan

  The Vitamin Shoppe4.8(5)

  $20.99
• 

  The 60 Capsules Sleep Support Relaxation & Calming Formula

  The Vitamin Shoppe3.8(46)

  $24.99
• 

  The Tablet Shoppe L- Tryptophan 1,000MG 60 Tablets

  The Vitamin Shoppe4.4(24)

  $34.99
• 

  The Vitamin Shoppe 5-HTP with Vitamin B6

  The Vitamin Shoppe4.7(36)

  $34.99
• 

  Now Foods L-Tryptophan 500 mg

  DPS Nutrition4.6(5600)

  $20.99
• 

  Best Naturals L-Tryptophan mg 60

  Target4.5(135)

  $13.95
• 

  NOW Foods L- Tryptophan Relaxation Support Capsules

  CVS Pharmacy4.6(4100)

  $20.99
• 

  Source Naturals L Tryptophan

  Walmart - Health Chest4.6(1100)

  $10.95

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.

• Willner Chemists

  4.7 (146)

  Vitamin & supplements store

  100 Park Ave, New York, NY 10017

  Directions(800) 633-1106

• Supplement Superstore

  5.0 (1389)

  Vitamin & supplements store

  8420 Eager Rd, St. Louis, MO 63144

  Directions(314) 961-3935

• Supplement Warehouse

  4.7 (229)

  Vitamin & supplements store

  181 W Crossroads Pkwy Ste F, Bolingbrook, IL 60440

  Directions(630) 965-8526

• Uscriptives

  4.4 (42)

  Vitamin & supplements store

  1535 W Loop S Ste 200, Houston, TX 77027

  Directions(800) 778-7191

• Doctors Supplement Store

  4.6 (28)

  Vitamin & supplements store

  250 Axminister Dr, Fenton, MO 63026

  Directions(877) 846-7122

• SameDaySupplements.com

  4.5 (503)

  Vitamin & supplements store

  64 Nancy St Unit c, West Babylon, NY 11704

  Directions(631) 539-7339

• GNC

  4.4 (92)

  Vitamin & supplements store

  753 Broadway Spc 753, New York, NY 10003

  Directions(212) 380-5999

• GNC

  4.7 (202)

  Vitamin & supplements store

  2 Pennsylvania Plaza Ste 29B, New York, NY 10121

  Directions(212) 239-1251

• L-Tryptofaan powder

  J South - forum.bodybuilding.nl

  … Een japans bedrijf had genetisch gemannipuleerde bacterien gemaakt die L-tryptophan aanmaaten om de productie omhoog te schroeven. LAter bleek deze bacterien naast tryptofaan …

• l-Tryptophan

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

  … available in the United States include Tryptophan PRN 350 mg capsules, L-tryptophan 500 mg capsules, Free Aminos 750 mg capsules, and Free Aminos powder, sold under the …

  20035 citations

• Managing mood-related symptoms utilizing diet, targeted nutrient supplementation, and lifestyle changes: A case series

  K Ross, M VanNortwick - EXPLORE, 2022 - Elsevier

  Background The Office of Disease Prevention and Health Promotion reports that mental health disorders are one of the most “common causes of disability,” affecting 18.1% of adults in …

  20223 citations

• Supplementing healthy women with up to 5.0 g/d of L-tryptophan has no adverse effects

  C Hiratsuka, T Fukuwatari, M Sano, K Saito… - The Journal of …, 2013 - academic.oup.com

  … The nutritional consequences of deficient intake of the essential amino acid L-tryptophan (L-Trp) have been known for more than 7 decades (1). L-Trp plays a critical role in preventing …

  201379 citations

• Xanthurenic Acid Excretion in Urine After Oral Intake of 5 Gram L-Tryptophan by Healthy Volunteers: Standardisation of the Reference Values

  M Hoes, EKJ Kreutzer, N Sijben - Clinical Chemistry and …, 1981 - edoc.hu-berlin.de

  … The results of the first and second tests demonstrate that prior loading with L-tryptophan does … It is possible that the L-tryptophan dose is important for the urine collection period. Authors …

  198113 citations

• The importance of quality specifications in safety assessments of amino acids: The cases of L-tryptophan and L-citrulline

  HA Oketch-Rabah, AL Roe, BJ Gurley… - The Journal of …, 2016 - academic.oup.com

  … as DSs and in pharmaceutical products, L-tryptophan (L-Trp) and L-… L-tryptophan supplementation does not improve running … associated with ingestion of L-tryptophan—United …

  201622 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2018-11-21. DSLD Label ID: 183563. 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.