🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • Limited research evidence available for ingredients
B Label Compliance Grade

Product Label

📸

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Label Data

1 Capsule(s) Serving Size
60 Servings
Amino acid/Protein Product Type
0% Evidence Coverage

Supplement Facts — Evidence Check

500 mg
📊 Market median: 500.0mg (70 products)
Median 500.0mg This product: 500mg

Other Ingredients

Vegetarian Capsule Magnesium Stearate Cellulose Silicon Dioxide

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (100% of products) Structure/Function (90% of products) Nutrient (61% of products)

Target Groups

Vegan Vegetarian Adult (18 - 50 Years) Gluten Free Dairy Free

Product Information

📋 Directions for Use

Usage: Take 1 capsule on an empty stomach 30 minutes before sleep with water or fruit juice or as directed by your qualified healthcare professional.

⚠️ Warnings & Precautions

Warning: Do not take this product if you are taking any SSRIs (selective serotonin reuptake inhibitors) or MAOIs (monoamine oxidase inhibitors). Consult a healthcare professional before using this product if you are trying to conceive, pregnant, or lactating, under the age of 18, or have a medical condition; if adverse reactions occur, discontinue use.

Consult a healthcare professional before using this product if you are trying to conceive, pregnant, or lactating, under the age of 18, or have a medical condition; if adverse reactions occur, discontinue use.

Keep out of the reach of children.

🧪 Formulation Notes

L-tryptophan is an essential amino acid and hence cannot be synthesized by the body, but must be obtained from food or supplements. Because L-tryptophan is converted to serotonin (5-hydroxytryptamine) and melatonin in the body, it plays an important role in supporting relaxation, restful sleep and positive mood.

L-tryptophan may also help in reducing carbohydrate cravings. Jarrow Formulas L-Tryptophan TryptoPure is manufactured at a GMP facility via fermentation of vegetable materials.

Supports serotonin production for relaxation, positive mood, & sleep

V Vegan Veggie Cap

Non GMO Certified by NSF www.nsfnongmo.org

No wheat, gluten, soybeans, dairy, egg, fish/shellfish, or peanuts/tree nuts.

Additional Information

Store in a cool, dry place.

Non GMO Certified by NSF www.nsfnongmo.org Veggie Cap

Product Details

UPC / SKU 7 90011 15056 5
DSLD Entry Date 2022-06-16
Product Type Amino acid/Protein
Form Capsule
DSLD ID 264895
Data Updated 2026-04-11

Research Evidence

29 Research Sources
48 Avg Quality Score
19 Rct
5 Meta Analysis
3 Systematic Review
2 Clinical Trial
B Prebiotic and probiotic supplementation and the tryptophan-kynurenine pathway: A systematic review and meta analysis
Meta Analysis Neuroscience and biobehavioral reviews 2021
B Tryptophan and 5-hydroxytryptophan for depression
Systematic Review The Cochrane database of systematic reviews 2001
B Tryptophan and 5-hydroxytryptophan for depression
Systematic Review The Cochrane database of systematic reviews 2002
B The impact of tryptophan supplementation on sleep quality: a systematic review, meta-analysis, and meta-regression
Meta Analysis Nutrition reviews 2022
B No effects of acute tryptophan depletion on anxiety or mood in weight-recovered female patients with anorexia nervosa
Rct European archives of psychiatry and clinical neuroscience 2023
C The association between tryptophan levels and postpartum mood disorders: a systematic review and meta-analysis
Meta Analysis BMC psychiatry 2022
C A systematic review of the effect of L-tryptophan supplementation on mood and emotional functioning
Systematic Review Journal of dietary supplements 2021
C Comparison between Acupuncture and Nutraceutical Treatment with Migratens® in Patients with Fibromyalgia Syndrome: A Prospective Randomized Clinical Trial.
Rct Nutrients
C Intake of Lactiplantibacillus plantarum HEAL9 Improves Cognition in Moderately Stressed Subjects: A Randomized Controlled Study.
Rct Nutrients
C Are tryptophan and 5-hydroxytryptophan effective treatments for depression? A meta-analysis
Meta Analysis The Australian and New Zealand journal of psychiatry 2002
View all evidence for Tryptophan →

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