🟢 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 Vegetarian Capsule(s) Serving Size
90 Servings
Other Combinations Product Type
100% Evidence Coverage

Supplement Facts — Evidence Check

20 mg (1176% DV)
📊 15.4× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 20mg UL 100mg
2 mg (18% DV)
✅ Within RDA (0.2× RDA of 11 mg) 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 2mg UL 40mg
150 mg
📊 Market median: 100.0mg (116 products) 📚 15 studies (Tier A: 0, B: 3)
This product: 150mg
50 mg
📊 Market median: 200.0mg (358 products) 📚 9 studies (Tier A: 0, B: 2)
This product: 50mg

Other Ingredients

Plant Cellulose organic Rice extract

Label Claims — Verification

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

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

Suggested Use: As a dietary supplement, adults take 1 capsule one to two times daily, or as directed by your health care practitioner.

⚠️ Warnings & Precautions

Please consult a physician before consuming this product if you are pregnant or nursing, taking medication or have a medical condition.

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

Do not use if safety seal is damaged or missing.

Keep out of reach of children.

🧪 Formulation Notes

5-HTP Worx is an amino acid that your body produces naturally.

Your body uses 5-HTP to make serotonin. Low serotonin levels are associated with many mental ailments and health problems.

Superior Labs 5-HTP Worx capsules contain 150 mg pure 5-HTP plus a serotonin support blend.

Our capsules contain absolutely no magnesium stearate, dioxides, preservatives, or other potentially harmful artificial ingredients of any kind.

This product is formulated, developed and manufactured in a FDA registered and GMP certified facility, 3rd party inspected by a leading compliance authority for superior quality assurance.

Caution: Do not exceed recommended dosage.

100% pure Pure and potent

Serotonin support Neurotransmitter support Brain health Mood support

Does Not Contain: Magnesium stearate, dioxides, preservatives, or artificial ingredients of any kind.

Additional Information

Store in a cool, dry place.

Metal Safe Heavy Metal Tested Certified GMP Facility Made in USA

Product Details

UPC / SKU 8 50569 00660 5
DSLD Entry Date 2021-10-22
Product Type Other Combinations
Form Capsule
Brand SuperiorLabs
DSLD ID 256006
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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