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European L-5 HTP 100 mg

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

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 33% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Griffonia bean extract provides L-tryptophan and 5-HTP, which have moderate evidence for supporting mood regulation. Vitamin B6 acts as a cofactor in the synthesis of serotonin, while Vitamin C supports general antioxidant functions. Research on these combined ingredients for specific therapeutic outcomes remains limited.

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

Label

Product Label

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

Label Data

1 Capsule(s)
Serving Size
Botanical with Nutrients
Product Type
33%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
250 mg (417% DV)
25 mg (1471% DV)
19.2× RDA — above typical dose (UL: 100 mg) 114 studies (A:3, B:35)
Griffonia bean extract
102 mg

Other Ingredients

Gelatin Water Rice powder Silica 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, adults take one (1) capsule daily with meals, or as directed by a healthcare professional.

Warnings & Precautions

See caution statement on opposite panel.

Keep out of reach of children.

Caution: Not for use by children 18 years.

If pregnant or nursing, consult a physician before using this product.

Do not use while operating a motorized vehicle or heavy machinery.

Consult a physician before taking this product while using antidepressants or MAO-inhibiting medications.

Formulation Notes

Contains no sugar, salt, dairy, yeast, wheat, gluten, corn, soy, preservatives, artificial colors or flavors.

(L-5-hydroxytryptophan)

Our standardized griffonia extract is made under strict European quality standards which are comparable to over-the-counter drug standards in the US. It provide optimal levels of naturally occuring L-5-hydroxytryptophan.

Our L-5-HTP is formulated with important nutrients to optimize its effectiveness.

Vitamin C and B-6 aid the conversion of tryptophan to serotonin in the body.

Quality and potency guaranteed

Additional Information

Store in a cool, dry place and away from direct light.

New day. Fresh start. Better health.

Metadata

Product Details

UPC / SKU7 87500 06643 8
DSLD Entry Date2020-06-24
Product TypeBotanical with Nutrients
FormCapsule
DSLD ID228520
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
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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.