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5-HTP 100 mg

product on market Capsule Doctor's Best 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 that may support mood regulation and sleep quality. There is moderate evidence suggesting its efficacy in managing certain depressive symptoms. However, overall evidence coverage for this specific formulation remains limited.

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

Label

Product Label

Label for 5-HTP 100 mg
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Capsule(s)
Serving Size
60
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

Hypromellose Microcrystalline Cellulose Silicon Dioxide
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Adult use: Take 1 capsule daily, with or without food, or as recommended by your nutritionally informed physician.

Warnings & Precautions

Warning: Not to be used when taking MAO inhibitors, selective serotonin reuptake inhibitors (SSRIs), or other anti-depressant medications. It should also not be used by individuals taking any of the category of medications known as "triptans."

Keep out of the reach of children.

May impair your ability to drive or operate machinery.

Formulation Notes

Doctor's Best 5-HTP (5-hydroxy L-tryptophan) contains a naturally occurring metabolite of the amino acid tryptophan. 5-HTP is extracted from the seeds of the Griffonia simplicifolia plant. 5-HTP is converted in the brain to serotonin, a neurotransmitter substance found at the junctions (synapses) between neurons. It produces a calming and relaxing effect providing support to help maintain mental, emotional well-being, and to promote healthy sleep.

Doctor's Best 5-HTP is tested to ensure that it does not contain "Peak X."

Helps promote healthy sleep Helps promote calm and relaxation Helps support mental and emotional well-being

Non-GMO/Gluten free/Soy free/Vegan

Non-GMO/Gluten free/Soy free/Vegan

Additional Information

Vegan

Store in a cool dry place.

Metadata

Product Details

UPC / SKU7 53950 00077 3
DSLD Entry Date2024-02-22
Product TypeAmino acid/Protein
FormCapsule
DSLD ID302635
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.