Bio-Quercetin

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

📄 Open Full PDF View on NIH DSLD →
📸

Have a supplement label? Find it here.

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

Label Data

1 Vegetarian Capsule(s) Serving Size
Non-Nutrient/Non-Botanical Product Type
100% Evidence Coverage

Supplement Facts — Evidence Check

29 mg
📊 Market median: 500.0mg (283 products) 📚 173 studies (Tier A: 0, B: 62)
This product: 29mg

Other Ingredients

Microcrystalline Cellulose Vegetable Cellulose Vegetable Stearate Silica

Label Claims — Verification

❓ All Other
❓ Structure/Function
All Other (99% of products) Structure/Function (84% of products) Nutrient (23% of products) Qualified Health (1% of products)

Target Groups

Adult (18 - 50 Years)

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.

1 daily

⚠️ 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

Non-GMO

Highly-Absorbable Quercetin Phytosome

Additional Information

Scan for product info

Store tightly closed in a cool, dry place.

Product Details

UPC / SKU 7 37870 23023 6
DSLD Entry Date 2020-01-25
Product Type Non-Nutrient/Non-Botanical
Form Capsule
Brand Life Extension
DSLD ID 210981
Data Updated 2026-04-11

Research Evidence

184 Research Sources
55 Avg Quality Score
91 Systematic Review
75 Meta Analysis
7 Rct
7 Clinical Trial
2 Cochrane Review
1 Openfda Safety
B Treatment of gouty arthritis with traditional Chinese medicine decoction: Meta-analysis, network pharmacology analysis, and molecular docking
Meta Analysis Medicine 2024
PubMed DOI
B Effects of quercetin supplementation on lipid profile: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2017
PubMed
B Dietary polyphenols and the risk of metabolic syndrome: a systematic review and meta-analysis
Meta Analysis BMC endocrine disorders 2024
PubMed DOI
B Quercetin and endurance exercise capacity: a systematic review and meta-analysis
Meta Analysis Medicine and science in sports and exercise 2011
PubMed DOI
B Dietary flavonoid intake and smoking-related cancer risk: a meta-analysis
Meta Analysis PloS one 2013
PubMed DOI
B Clinical efficacy evaluation and potential mechanism prediction on Guizhi-Shaoyao-Zhimu decoction in the treatment of gouty arthritis based on meta-analysis, network pharmacology analysis, and molecular docking
Meta Analysis Medicine 2023
PubMed DOI
B A Systematic Review: Quercetin-Secondary Metabolite of the Flavonol Class, with Multiple Health Benefits and Low Bioavailability
Systematic Review International journal of molecular sciences 2024
PubMed DOI
B Dietary flavonoid for preventing colorectal neoplasms.
Cochrane Review The Cochrane database of systematic reviews
PubMed DOI Cochrane
B Flavonoids for treating venous leg ulcers.
Cochrane Review The Cochrane database of systematic reviews
PubMed DOI Cochrane
B The effects of quercetin supplementation on lipid profiles and inflammatory markers among patients with metabolic syndrome and related disorders: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2020
PubMed DOI
View all evidence for Quercetin →

Compare Similar Products

Quercetin 500 mg
Quercetin 500 mg Nature's Harmony 100
Isoquercetin 100 mg
Isoquercetin 100 mg Integrative Therapeutics 100
Quercetin 250 mg
Quercetin 250 mg VQ Verified Quality 100
NitroVasc with Cordiart
NitroVasc with Cordiart Life Extension 100
Citrus Bioflavonoid Complex 750 mg Bluebonnet 100
View all Quercetin products →
Quercetin research & evidence Best Quercetin rankings All Quercetin products More from Life Extension View on NIH DSLD →