L-Tryptophan 500 mg®
Amino Acids & ProteinBrand: California Academy of Health
Functions
Net Contents
60 Capsule(s)
Serving Size
2 Capsule(s)
Servings Per Container
30
Supplement Form
Capsule
Bar Code (UPC/SKU)
8 96291 00241 6
Product Version
Not Present
Label Analysis
Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.
Single-ingredient formula listed in Supplement Facts.
Every active ingredient discloses a specific amount per serving.
Label states: Vegan, Vegetarian, Gluten-Free.
This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.
Allergen Guide
Contains
- Milk
- Egg
- Shellfish
- Wheat
- Soy
- Gluten
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.
Supplement Facts
Serving Size: 2 Capsule(s) · 2–3 per day
| Ingredient | Amount Per Serving | |
|---|---|---|
| L-Tryptophan | 1000 mg | — |
Not Present
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
Suggested usage: As a dietary supplement, take 1-2 Vcaps 2 to 3 times daily on an empty stomach or as directed by a healthcare professional. Best used at bedtime. Consider taking this product in combination with CAOH Natural Calm or Calming Plus.
Warnings & Precautions
Precautions re: Children
Warning: Keep out of reach of children.
Precautions re: Pregnant or Nursing or Prescription Medications
Pregnant/lactating women, those taking anti-depressant medications (such as SSRI's or MAOI's), and those with liver disorders, consult a healthcare professional before using this product.
Precautions re: All Other
May cause drowsiness. Caution: Do not eat freshness packet. Keep packet in bottle.
Formulation
Formula re: Contains
L-Tryptophan: an essential amino acid important in human nutrition for the synthesis of melatonin, serotonin, and hormones regulating sleep.
Formulation re: Does NOT Contain
CAOH L- Tryptophan is pharmaceutically certified pure (USP) - every lot is tested to be free of Peak E and microbial contamination.
Formulation re: Vegetarian/Vegan
Certified vegetarian
Formulation re: Does NOT Contain
No preservatives
Formulation re: Does NOT Contain
Contains no: Sugar, salt, yeast, wheat, gluten, soy, milk, eggs, shellfish, or preservatives.
Formulation re: Vegetarian/Vegan
Vegetarian/Vegan product.
FDA Statements
FDA Statement of Identity
A Dietary Supplement
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Other Label Statements
General Statements: All Other Content
It also supports positive mood and immune function. As an essential amino acid, it is not synthesized by the body and must be obtained from the diet.
General Statements: All Other Content
Supports relaxation & sleep Encourages positive mood
Brand IP Statement(s) re: (c), (TM), (SM)
CAOH
Brand IP Statement(s) re: (c), (TM), (SM)
Vcap is a registered trademark of Capsugel.
Manufacturer & Distributor
Market Reference
California Natural L-Tryptophan
eBay - vitashopsmart$18.99Nutricost L- Tryptophan Capsules
Target4.1(231)$15.95L-Tryptophan Pure Encapsulations
Pure Prescriptions4.6(42)$72.50Now Foods L-Tryptophan 500 mg
NOW4.6(5600)$21.99Swanson L- Tryptophan 500 mg 90 Veggie Capsules
Target4.7(2000)$13.69L- Tryptophan Supplement Powder
Walmart - BulkSupplements.com4.9(119)$28.97The Vegan Shoppe L- Tryptophan 500mg 120 Veggie Capsules
eBay - posh-distributor4.7(45)$15.98NOW Foods L- Tryptophan Relaxation Support Capsules
Natural Healthy Concepts4.6(4100)$17.99
Where to Buy Locally
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.
South Bay Supps
5.0 (219)Vitamin & supplements store
831 E 30th St, National City, CA 91950
SD Discount Nutrition - San Diego, CA - Supplement Store
5.0 (403)Vitamin & supplements store
650 First Ave., San Diego, CA 92101
Pro Body Warehouse
4.9 (200)Vitamin & supplements store
301 3rd Ave, Chula Vista, CA 91910
Factory Nutrition And Wellness
4.8 (51)Vitamin & supplements store
600 Palm Ave Ste 105, Imperial Beach, CA 91932
FitLife Nutrition
4.7 (22)Vitamin & supplements store
2424 Hoover Ave Ste Q, National City, CA 91950
Wholesale Nutrition Center
5.0 (167)Vitamin & supplements store
3610 Midway Dr, San Diego, CA 92110
Royal Nutrition
5.0 (128)Vitamin & supplements store
3030 Plaza Bonita Rd Ste 2018, National City, CA 91950
The Vitamin Shoppe
4.6 (91)Vitamin & supplements store
3111 Sports Arena Blvd, San Diego, CA 92110
Research & Studies
Effects and side effects associated with the non-nutritional use of tryptophan by humans
JD Fernstrom - The Journal of nutrition, 2012 - academic.oup.com
… Effect of L-tryptophan on brain serotonin metabolism in depressed patients. Arch Gen … The acute effects of intravenous infusion of L-tryptophan in normal subjects. Clin Pharmacol Ther. …
2012143 citationsThe FDA Ban of L-tryptophan: politics, profits and prozac
DW Manders - Social Policy, 1995 - go.gale.com
… in humanities and sciences at the California College of Arts and Crafts, Oakland/San Francisco. He has lectured and done extensive research on the medical politics of L-Tryptophan. …
199511 citationsDose-related effects of calcium to enhance the effects of L-tryptophan on gut hormones and energy intake in obesity
J Anjom-Shoae, PCE Fitzgerald… - The Journal of …, 2025 - academic.oup.com
… intraduodenal infusions of 0 mg (Ca-0), 500 mg (Ca-500), or 1000 mg (Ca-1000) calcium, … infusion period 2, with Trp (Ca + Trp) in a load of 0.1 kcal/min, from t = 75-150 minutes (ie, …
20253 citationsTryptophan metabolism in man
AF Michael, KN Drummond, D Doeden… - The Journal of clinical …, 1964 - jci.org
… excreted in the 24 hours preceding L-tryptophan was subtracted from the total amount of metabolites excreted in the 24 hours after L-tryptophan. The metabolites measured were …
1964154 citationsl-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 citationsL-Tryptophan: Basic Metabolic Functions, Behavioral Research and Therapeutic Indications
DM Richard, MA Dawes, CW Mathias… - International …, 2009 - journals.sagepub.com
… of the role of L-tryptophan in protein synthesis and … L-tryptophan's role in synthesis of brain serotonin, details are provided on the research uses of L-tryptophan, particularly L-tryptophan …
2009981 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: 206315. 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.
Related Products
100% Beef Aminos
Universal
100% Beef Aminos
Universal
100% Beef Aminos
Universal
100% Beef Aminos
Universal