Home/ Supplements/ 5 Htp/ L-5-HTP 100 mg

L-5-HTP 100 mg

product on market Capsule Meijer 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 to support mood and sleep regulation. Research providing evidence for these effects is generally considered moderate. This specific formulation maintains a high safety profile for typical use.

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

Label

Product Label

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

Label Data

1 Capsule(s)
Serving Size
30
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 powder Gelatin Capsule Silica Vegetable Magnesium Stearate
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Use: As a dietary supplement for adults, take one (1) capsule three times daily on an empty stomach as needed or at bedtime as 5-HTP may produce drowsiness.

Warnings & Precautions

Caution: Not intended for use by pregnant or nursing women. If you take a prescription medication or have any medical condition, consult a physician before using this product.

If any adverse reactions occur, immediately stop using this product and consult your doctor. Do not drive, operate machinery or consume alcohol when taking this product.

Not intended for use by persons under the age of 18.

If seal under cap is damaged or missing, do not use.

Keep out of reach of children.

Formulation Notes

General health

Supports a healthy mood

No yeast, wheat, soy, dairy, artificial colors, artificial flavors, preservatives, gluten, artificial sweetener, fish, lactose.

GF Gluten free

Additional Information

Store at room temperature (59 degrees F - 86 degrees F) (15 degrees C - 30 degrees C).

Our quality guarantee The Meijer Family www.meijer.com/satisfaction

Questions or comments? 1-844-338-0108

Metadata

Product Details

UPC / SKU7 19283 67405 0
DSLD Entry Date2022-08-23
Product TypeAmino acid/Protein
FormCapsule
BrandMeijer
DSLD ID271859
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.