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: 3 Vegetarian Capsule(s) · 1 per day

Not Present

• 

  BIOVEA L- Tryptophan 500mg 60 Vegetarian Capsules

  biomall.bg

  $16.94
• 

  NOW Foods L- Tryptophan Relaxation Support Capsules

  Walmart - iHerb4.6(4100)

  $16.93
• 

  Swanson L- Tryptophan 500 mg 90 Veggie Capsules

  iHerb4.7(2000)

  $13.69
• 

  Life Extension L- Tryptophan 500 mg 90 Vegetarian Capsules

  PureFormulas.com4.7(505)

  $24.75
• 

  Bestvite's L- Tryptophan 500mg (120 Vegetarian Capsules)

  Bestvite4.8(10)

  $16.99
• 

  Source Naturals L-Tryptophan with Coenzyme B-6

  Borinquen Natural4.6(296)

  $6.50Lowest
• 

  L-Tryptophan Pure Encapsulations

  personalpower4.6(42)

  $72.50
• 

  Now Foods L- Tryptophan 500mg 90 Veg Capsules

  PureFormulas.com4.8(21)

  $16.96

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.

• NutraBio Labs Inc

  4.9 (173)

  Vitamin & supplements store

  600 Lincoln Blvd, Middlesex, NJ 08846

  Directions(888) 688-7224

• GNC

  4.3 (42)

  Vitamin & supplements store

  1320 Centennial Ave, Piscataway, NJ 08854

  Directions(732) 981-8224

• Unbound Supplements

  Vitamin & supplements store

  564 Lincoln Blvd, Middlesex, NJ 08846

  Directions(732) 997-6500

• Healthy Bio-Vitamins Inc (Halal Certified Vitamins)

  5.0 (1)

  Herbal medicine store

  311 North Ave #4216, Dunellen, NJ 08812

  Directions(732) 474-0263

• The Vitamin Shoppe

  4.5 (86)

  Vitamin & supplements store

  1579 US-22 W, Watchung, NJ 07069

  Directions(908) 322-1240

• Underground Nutrition Garwood

  5.0 (163)

  Vitamin & supplements store

  331 South Ave D-E, Garwood, NJ 07027

  Directions(908) 928-0235

• Healthy Start Herbalife distributor.

  4.7 (13)

  Vitamin & supplements store

  427 E Main St, Bound Brook, NJ 08805

  Directions(908) 986-8978

• The Vitamin Shoppe

  4.6 (121)

  Vitamin & supplements store

  397 NJ-28, Raritan, NJ 08869

  Directions(908) 231-7589

• A Momentary Lapse of Reason: Living with L-tryptophan Induced EMS and the Hidden Dangers of Genetic Modification of Our Foods

  H Behr - 2011 - books.google.com

  … L-Tryptophan has destroyed my health, my relationships, … Such a pity then that Biovea, the company I purchased the … ), then Biovea have sent contaminated L-Tryptophan to me. …

  2011

• Targeted high-level production of chuangxinmycin and its halogenated derivatives with antitubercular activity

  X Zhao, Y Lu, X Zhang, X Zhang, Y Du, X Han… - Microbial Cell …, 2025 - Springer

  … Other tested tryptophan derivatives, such as 5-hydroxy/cyano/ benzyloxy, 6-methoxy, 7-methyl and 1-methyl-L-tryptophan, were not incorporated into the biosynthetic pathway to …

  20251 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2019-09-24. DSLD Label ID: 207444. 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.