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Theaflavin

product on market Capsule Life Extension Safety: 100/100
100/100

This product looks safe

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

What the Evidence Says

AI-generated · Qwen 3.6 · grounded in 1 source · methodology

Black tea extract contains theaflavins, which research suggests may support cardiovascular health and metabolic function. However, clinical evidence for these specific effects is currently limited. The ingredient profile maintains a high safety rating for general consumption.

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

Label

Product Label

Label for Theaflavin
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Vegetarian Capsule(s)
Serving Size
Botanical
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Market median: 180.0mg (239 products) 49 studies (A:1, B:19)

Other Ingredients

Vegetable Cellulose Stearic Acid Silica
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Read the entire label and follow the directions carefully prior to use. Directions: Take one (1) capsule daily with or without food, or as recommended by a healthcare practitioner. Take earlier in the day if you are sensitive to caffeine.

Warnings & Precautions

Warnings: Keep out of reach of children.

Do not exceed recommended dose. Do not purchase if outer seal is broken or damaged.

When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.

To report a serious adverse event or obtain product information, contact 1-866-280-2852.

Formulation Notes

Each serving contains les than 8 mg of caffeine (the amount found in about a 1/8 cup brewed green tea).

Standardized extract

Non-GMO

Patented tea extract

Additional Information

Scan for product info

Non GMO LE Certified

Store tightly closed in a cool, dry place.

Metadata

Product Details

UPC / SKU7 37870 13043 7
DSLD Entry Date2020-08-23
Product TypeBotanical
FormCapsule
DSLD ID231780
Data Updated2026-04-11
Research

Research Evidence

82
Research Sources
51
Avg Quality
28
Rct
19
Meta Analysis
17
Clinical Trial
16
Systematic Review
A Preconception lifestyle advice for people with infertility
Meta Analysis The Cochrane database of systematic reviews 2021 PubMed DOI
B The effects of caffeine intake on weight loss: a systematic review and dos-response meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2019 PubMed DOI
B Effects of caffeine chewing gum supplementation on exercise performance: A systematic review and meta-analysis
Meta Analysis European journal of sport science 2023 PubMed DOI
B Genetic susceptibility to caffeine intake and metabolism: a systematic review
Systematic Review Journal of translational medicine 2024 PubMed DOI
B Pharmacological interventions for sleepiness and sleep disturbances caused by shift work
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
B Effects of Caffeine Intake on Endurance Running Performance and Time to Exhaustion: A Systematic Review and Meta-Analysis
Meta Analysis Nutrients 2022 PubMed DOI
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
Meta Analysis The British journal of nutrition 2024 PubMed DOI
B Effect of green tea catechins with or without caffeine on anthropometric measures: a systematic review and meta-analysis
Systematic Review The American journal of clinical nutrition 2010 PubMed DOI
B Caffeine, CYP1A2 Genotype, and Endurance Performance in Athletes
Rct Medicine and science in sports and exercise 2018 PubMed DOI
B The combination of L-theanine and caffeine improves cognitive performance and increases subjective alertness
Rct Nutritional neuroscience 2010 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.