L-Tryptophan

Suggested Use

Suggested Usage: As a dietary supplement; adults take 2 capsules; 1-3 times daily; between meals or as directed by your health professional.

• 

  Douglas Laboratories L- Tryptophan 60 Capsules

  Cincinnati Health Institute4.7(6)

  $54.50
• 

  L-Tryptophan

  DrHagmeyer.com4.7(6)

  $43.34
• 

  365 by Whole Foods Market, Free-Form L-Tryptophan 500mg, Vegan, 60 Capsules

  Whole Foods Market

  $18.99
• 

  Nutricost L- Tryptophan Capsules

  Target4.6(1600)

  $15.95
• 

  Douglas Laboratories Melatonin P.R. 3mg Prolonged-Release 60 Tablets

  The Healthy Place4.5(63)

  $17.60
• 

  Klaire Labs L- Tryptophan 90 Capsules

  Professional Supplement Center3.7(3)

  $43.99
• 

  Horbaach L Tryptophan 1500mg 180 Capsules

  Target4.8(30)

  $21.49
• 

  The Vegan Shoppe L- Tryptophan 500mg 120 Veggie Capsules

  The Vitamin Shoppe4.7(50)

  $36.99

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.

• San Mateo Sports Nutrition & Supplements

  5.0 (109)

  Vitamin & supplements store

  115 E 4th Ave, San Mateo, CA 94401

  Directions(650) 344-6299

• The Vitamin Shoppe

  4.3 (99)

  Vitamin & supplements store

  1200 El Camino Real, Redwood City, CA 94063

  Directions(650) 701-0273

• Health by Heidi

  4.4 (17)

  Vitamin & supplements store

  1212 W Hillsdale Blvd # G, San Mateo, CA 94403

  Directions(650) 572-7100

• Max Muscle San Carlos powered by NorCal Nutrition

  5.0 (23)

  Vitamin & supplements store

  900 Laurel St, San Carlos, CA 94070

  Directions(650) 592-6676

• Nutrition Palace

  5.0 (190)

  Vitamin & supplements store

  651 W Hamilton Ave Ste 1030, Campbell, CA 95008

  Directions(408) 796-7344

• GNC

  4.7 (18)

  Vitamin & supplements store

  45-D Serramonte Center Spc D382, Daly City, CA 94015

  Directions(628) 239-0511

• The Vitamin Shoppe

  4.5 (80)

  Vitamin & supplements store

  115 Colma Blvd, Colma, CA 94014

  Directions(650) 756-2257

• GNC

  2.6 (31)

  Vitamin & supplements store

  190 HILLSDALE MALL Spc 1232, San Mateo, CA 94403

  Directions(650) 356-8637

• Impact of the gut microbiota on intestinal immunity mediated by tryptophan metabolism

  J Gao, K Xu, H Liu, G Liu, M Bai, C Peng… - Frontiers in cellular and …, 2018 - frontiersin.org

  … In addition to serving as a nutrient enhancer, L-tryptophan (… are important for maintaining healthy bowels. Although the high … As an essential nutrient in mammals, L-tryptophan (Trp), and …

  20181,497 citations

• The biology and biochemistry of kynurenic acid, a potential nutraceutical with multiple biological effects

  LF Alves, JB Moore, DB Kell - International Journal of Molecular Sciences, 2024 - mdpi.com

  … Accordingly, improved functioning, and the potential for an extended and healthy lifespan, might … (viz L-tryptophan), we consider it worthwhile to review their properties in broad outline. …

  202436 citations

• A heretofore undisclosed crux of eosinophilia-myalgia syndrome: compromised histamine degradation

  MJ Smith, RH Garrett - Inflammation Research, 2005 - Springer

  … L-tryptophan is the sole or major component [39]; a preceding “sharp upturn” [40] in nationwide consumption of L-tryptophan supplements … at peak excretions in healthy humans [179];24 …

  200543 citations

• Post-Traumatic Stress Disorder (PTSD) & Anxiety

  L McNamara - drladdvip.com

  … (2) The amino acid 5-HTP (hydroxy-L-tryptophan) has been … supplement, as well as what is in the liver health supplement I … , can all be purchased from Douglas Labs by first creating a …

• Chronic Fatigue Syndrome Nutritional Supplementation Helps Reduce the Symptoms & Progression of Chronic Fatigue Syndrome

  LR McNamara - drladdvip.com

  … disclaimer after the article, and consult your personal health care provider prior to acting … -L-Carnitine and DHEA from Douglas Labs. You can buy from Douglas Labs by first creating a …

• L-Tryptophan 60 vcaps by Douglas Labs

  RNR Points

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2021-04-22. DSLD Label ID: 244801. 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.