🟢 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

📸

Have a supplement label? Find it here.

Upload a photo of any supplement label to search our database of 92,312 products.

Label Data

4 Capsule(s) Serving Size
22 Servings
Amino acid/Protein Product Type
100% Evidence Coverage

Supplement Facts — Evidence Check

200 mg
📊 Market median: 100.0mg (116 products) 📚 15 studies (Tier A: 0, B: 3)
This product: 200mg

Other Ingredients

Brown Rice Flour Hydroxypropyl Methylcellulose Griffonia seed extract Magnesium Stearate

Label Claims — Verification

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

Target Groups

Vegan Vegetarian Adult (18 - 50 Years) Women (not pregnant or lactating)

Product Information

📋 Directions for Use

Directions: Adults, take 4 capsules daily, ideally on an empty stomach or a carbohydrate only snack. Do not exceed recommended amount.

⚠️ Warnings & Precautions

Allergy advice: Although rigorous precautions are taken to prevent any cross-contamination, this product is manufactured in a facility that handles allergy-based materials.

Cautions: Always consult your health practitioner before taking nutritional supplements, especially if you are taking medication or under medical supervision. Not recommended for children, pregnant or lactating women.

Not recommended for children, pregnant or lactating women.

You should not take supplements as a substitute for a varied balance diet or healthy lifestyle.

Store in a cool, dry & dark place, under 25 degrees, out of reach of children.

🧪 Formulation Notes

Extracted from griffonia seed

Suitable for Vegetarians & Vegans

400mg Whole Griffonia Seed Equivalent

Additional Information

GMP Manufactured in the UK Consistent Quality

Store in a cool, dry & dark place, under 25 degrees, out of reach of children.

Product Details

UPC / SKU 5 060361 463581
DSLD Entry Date 2023-02-21
Product Type Amino acid/Protein
Form Capsule
DSLD ID 284216
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 →

Compare Similar Products

View all 5 Htp products →