Black Tea P.E. 20% (Theaflavin)
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
350 mg
Serving Size
142
Servings
Other Combinations
Product Type
100%
Evidence Coverage
Supplement Facts — Evidence Check
350 mg
📊 Market median: 180.0mg (239 products)
📚 43 studies (Tier A: 1, B: 19)
Other Ingredients
None
Label Claims — Verification
❓
All Other
❓
Structure/Function
All Other (98% of products)
Structure/Function (93% of products)
Nutrient (19% of products)
Target Groups
Adult (18 - 50 Years)
Gluten Free
Dairy Free
Sugar Free
Product Information
📋 Directions for Use
Directions: As a dietary supplement, typical usage is 350 mg (rounded 1/4 tsp). Individual needs vary.
⚠️ Warnings & Precautions
Warning: This product is not intended for use by those with a serious medical condition or pregnant or lactating women.
Consult with your physician before use.
Keep out of reach of children.
WARNING: This product contains approximately 3% caffeine. Caffeine is HIGHLY TOXIC in large quantities.
🧪 Formulation Notes
Free of: sugar, soy, dairy, yeast, gluten, corn and additives.
Additional Information
Derived from Camellia sinensis leaf
Storage: Keep dry, cool & dark
US Standard Measuring Spoons Spoon Size (level) milligrams 1/16 teaspoon 81 1/8 teaspoon 162 1/4 teaspoon 324
Product Details
DSLD Entry Date
2013-06-25
Product Type
Other Combinations
Form
Powder
Brand
PureBulk.com
DSLD ID
23034
Data Updated
2026-04-11
Research Evidence
82
Research Sources
51
Avg Quality Score
28
Rct
19
Meta Analysis
17
Clinical Trial
16
Systematic Review
B
The effects of caffeine intake on weight loss: a systematic review and dos-response meta-analysis of randomized controlled trials
B
Effects of caffeine chewing gum supplementation on exercise performance: A systematic review and meta-analysis
B
Pharmacological interventions for sleepiness and sleep disturbances caused by shift work
B
Effects of Caffeine Intake on Endurance Running Performance and Time to Exhaustion: A Systematic Review and Meta-Analysis
B
The effects of green tea extract supplementation on body composition, obesity-related hormones and oxidative stress markers: a grade-assessed systematic review and dose-response meta-analysis of randomised controlled trials
B
Effect of green tea catechins with or without caffeine on anthropometric measures: a systematic review and meta-analysis
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