🟢 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
180 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

Magnesium Stearate

Label Claims — Verification

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

Target Groups

Adult (18 - 50 Years) Gluten Free Dairy Free

Product Information

📋 Directions for Use

Suggested Use Take 1-3 capsules on an empty stomach 30 minutes before food consumption or sleep with water or fruit juice, or as directed by your health care consultant.

⚠️ Warnings & Precautions

Warnings: Do not take this product if you are pregnant or breastfeeding. If you are taking SSRI's (selective serotonin reuptake inhibitors) please contact your health care professional before taking this product.

Keep out of the reach of children.

🧪 Formulation Notes

No wheat, no gluten, no soy, no dairy, no egg, no fish/shellfish, no nuts/tree nuts, no corn.

Additional Information

Description - Pharmaceutical Grade-Highest Purity L-Tryptophan is an essential amino acid It cannot be synthesized by the body. It must be obtained via food or supplements. L-Tryptophan is converted into serotonin (5-hydroxytryptomine) and melatonin in the body. It plays an important role in promoting relaxation, sleep, good mood, and may also help reduce carbohydrate cravings.

Product Details

UPC / SKU 7 90011 15056 5
DSLD Entry Date 2012-07-25
Product Type Amino acid/Protein
Form Capsule
DSLD ID 11367
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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