🟢 100/100

This product looks safe

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

Product Label

📸

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Label Data

1 Capsule(s) Serving Size
Other Combinations Product Type
100% Evidence Coverage

Supplement Facts — Evidence Check

5 mg (31% DV)
✅ Within RDA (0.4× RDA of 14 mg) 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 5mg UL 35mg
5 mg (294% DV)
📊 3.8× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 5mg UL 100mg
25 mg (6% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 25mg
📊 Market median: 100.0mg (116 products) 📚 15 studies (Tier A: 0, B: 3)
This product: 100mg
50 mg
📊 Market median: 300.0mg (214 products) 📚 23 studies (Tier A: 0, B: 6)
This product: 50mg

Other Ingredients

Rice Flour Gelatin Magnesium Stearate Silica

Label Claims — Verification

All Other
Structure/Function
All Other (99% of products) Structure/Function (78% of products) Nutrient (52% of products)

Target Groups

Adult (18 - 50 Years) Gluten Free Sugar Free

Product Information

📋 Directions for Use

Directions: Take 1 capsule, with meals as a dietary supplement or as directed by a healthcare professional.

⚠️ Warnings & Precautions

Keep out of reach of children.

Do not purchase if seal is broken.

🧪 Formulation Notes

Supports a postive mood Promotes increased levels of serotonin

No sugar, yeast, wheat, soy, artificial colors, flavors or preservatives Gluten free

Additional Information

Protect from heat, light & moisture. Store in a cool, dry place.

Made in the U.S.A. from globally sourced ingredients.

Trusted since 1972 Natural vitamins Pharmacist recommended

Product Details

UPC / SKU 0 35046 00384 5
DSLD Entry Date 2020-03-24
Product Type Other Combinations
Form Capsule
Brand Windmill
DSLD ID 215457
Data Updated 2026-04-11

Research Evidence

21 Research Sources
53 Avg Quality Score
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
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 5-hydroxytryptophan supplementation on sleep quality and gut microbiota composition in older adults: A randomized controlled trial
Rct Clinical nutrition (Edinburgh, Scotland) 2024
B The Impact of 5-Hydroxytryptophan Supplementation on Cognitive Function and Mood in Singapore Older Adults: A Randomized Controlled Trial
Rct Nutrients 2025
B The Efficacy of Different Triptans for the Treatment of Acute Headache in Pediatric Migraine: A Systematic Review
Systematic Review Indian pediatrics 2023
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
C Sleep disorders in children
Systematic Review BMJ clinical evidence 2010
C Effects of 5-hydroxytryptophan on distinct types of depression: a systematic review and meta-analysis
Meta Analysis Nutrition reviews 2020
C Investigating genetic links between biological aging and adverse pregnancy outcomes
Meta Analysis Biogerontology 2025
View all evidence for 5 Htp →

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