5-HTP

product on market Capsule CHK Nutrition Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · grounded in 1 source · methodology

5-Hydroxytryptophan is a precursor to serotonin used in research to support mood and sleep regulation. There is moderate evidence suggesting its efficacy for managing certain depressive symptoms. However, overall evidence coverage for this specific formulation is limited.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for 5-HTP
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Capsule(s)
Serving Size
120
Servings
Amino acid/Protein
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Market median: 100.0mg (116 products) 18 studies (A:0, B:3)

Other Ingredients

Rice Flour Vegetable based Capsule Magnesium Stearate Silicon Dioxide
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: Take 1 capsule one to three times a day or as directed by your health care practitioner. Use only under medical supervision.

Use of CysReplete is recommended with this product to prevent sulfur amino acid depletion.

Warnings & Precautions

If you are pregnant or nursing consult your health care practitioner before use.

Keep out of reach of children.

Formulation Notes

Does not contain wheat, corn, soy, sucrose, salt, starch, yeast, artificial flavors, artificial colorings, or other known allergens.

GF Certified Gluten-free

Additional Information

Keep away from direct sunlight.

This product is intended for resale.

This product is manufactured in a cGMP certified facility.

GF Certified Gluten-free

Metadata

Product Details

DSLD Entry Date2018-02-23
Product TypeAmino acid/Protein
FormCapsule
DSLD ID174162
Data Updated2026-04-11
Research

Research Evidence

21
Research Sources
53
Avg Quality
11
Systematic Review
6
Rct
4
Meta Analysis
B Combination pharmacotherapy for the treatment of fibromyalgia in adults
Systematic Review The Cochrane database of systematic reviews 2018 PubMed DOI
B Tryptophan and 5-hydroxytryptophan for depression
Systematic Review The Cochrane database of systematic reviews 2001 PubMed
B Tryptophan and 5-hydroxytryptophan for depression
Systematic Review The Cochrane database of systematic reviews 2002 PubMed
B The impact of 5-hydroxytryptophan supplementation on sleep quality and gut microbiota composition in older adults: A randomized controlled trial
Rct Clinical nutrition (Edinburgh, Scotland) 2024 PubMed DOI
B The Impact of 5-Hydroxytryptophan Supplementation on Cognitive Function and Mood in Singapore Older Adults: A Randomized Controlled Trial
Rct Nutrients 2025 PubMed DOI
B The Efficacy of Different Triptans for the Treatment of Acute Headache in Pediatric Migraine: A Systematic Review
Systematic Review Indian pediatrics 2023 PubMed
B The effect of therapeutic massage combined with conventional therapy in children with functional dyspepsia: a systematic review and meta-analysis
Systematic Review Frontiers in pharmacology 2025 PubMed DOI
C Sleep disorders in children
Systematic Review BMJ clinical evidence 2010 PubMed
C Effects of 5-hydroxytryptophan on distinct types of depression: a systematic review and meta-analysis
Meta Analysis Nutrition reviews 2020 PubMed DOI
C Investigating genetic links between biological aging and adverse pregnancy outcomes
Meta Analysis Biogerontology 2025 PubMed DOI
View all evidence for 5 Htp →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.