🟢 90/100

This product looks safe

  • Contains proprietary blend — exact ingredient amounts not disclosed
  • 25% of ingredients have research evidence
B Label Compliance Grade

Product Label

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Safety Alerts

ℹ️ Contains proprietary blend — exact ingredient amounts not disclosed

Label Data

2 Tablet(s) Serving Size
45 Servings
Other Combinations Product Type
25% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin C
1000 mg (1111% DV)
Calcium
180 mg (14% DV)
140 mg (11% DV)
✅ Within RDA (0.2× RDA of 700 mg) 📚 12 studies (Tier A: 0, B: 3)
RDA 700mg This product: 140mg UL 4000mg
Proprietary Blend
525 mg

Other Ingredients

Stearic Acid Cellulose Vegetable Magnesium Stearate

Label Claims — Verification

Nutrient
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) Kosher

Product Information

📋 Directions for Use

Recommended Use: Take 2 tablets daily with a meal.

⚠️ Warnings & Precautions

Do not use if inner seal is missing or damaged.

🧪 Formulation Notes

We source the world's purest ingredients, no matter where they are grown, to ensure the active nutrients are delivered just as nature intended.

General nutrition support

Citrus Bioflavonoids with herbal extract Provides 500 mg of Vitamin C per tablet

Guaranteed pure

Additional Information

Bottle made from 100% post consumer recycled material. We are committed to you and our planet. Scan to learn more.

Ko Pareve (Kosher)

New look! Same great product

Herbal experts since 1972

Product Details

UPC / SKU 0 99904 01646 0
DSLD Entry Date 2021-09-24
Product Type Other Combinations
Form Tablet or Pill
DSLD ID 255224
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
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
B Dietary polyphenols and the risk of metabolic syndrome: a systematic review and meta-analysis
Meta Analysis BMC endocrine disorders 2024
B Quercetin and endurance exercise capacity: a systematic review and meta-analysis
Meta Analysis Medicine and science in sports and exercise 2011
B Dietary flavonoid intake and smoking-related cancer risk: a meta-analysis
Meta Analysis PloS one 2013
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
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
B Dietary flavonoid for preventing colorectal neoplasms.
Cochrane Review The Cochrane database of systematic reviews
B Flavonoids for treating venous leg ulcers.
Cochrane Review The Cochrane database of systematic reviews
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
View all evidence for Quercetin →

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