Quercetin-Cnone

Other Combinations

Brand: Cardiovascular Research

CapsuleOther CombinationsOff Market

Product label for Quercetin-C — Click to view full label

Net Contents

90 Capsule(s)

Serving Size

2–3 Capsule(s)

Servings Per Container

Supplement Form

Capsule

Bar Code (UPC/SKU)

6 96859 13069 4

Product Version

Not Present

Label Analysis

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

3Active Ingredients

3 distinct active ingredients are disclosed in Supplement Facts.

100%Amount Transparency

Label includes a proprietary blend, so some individual amounts are not itemized.

1% Daily Value Coverage

1 ingredients report a %DV; 1 meet or exceed 100% DV.

1Dietary Attributes

Label states: Gluten-Free.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen Guide

Free From

Milk
Gluten

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Supplement Facts

Serving Size: 2–3 Capsule(s) · 1 per day

Ingredient	Amount Per Serving	% Daily Value
Vitamin C(Tapioca)	100 mg	167%
Bioflavonoid Complex	350 mg	—
Phosphatidylcholine(Soy Lecithin)	250 mcg	—

Percent Daily Values are based on a 2,000 calorie diet.

Other Ingredients

CelluloseGelatinMagnesium StearateSilicon Dioxide

Target Groups

Adult (18 - 50 Years)Gluten Free

Label Claims

All OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Directions Take two or three capsules daily, or as directed by a physician.

Formulation

Formula re: Contains

Quercetin-C with Catechin are active constituents of the bioflavonoid, rutin. In this formula, Phosphatidylcholine is used as a liposomal base for maximum absorption. The nutrients contained within these capsules are the purest and highest quality available.

Formulation re: Other

Liposome-enhanced

Formulation re: Does NOT Contain

Gluten free, casein free

FDA Statements

FDA Statement of Identity

A Dietary Supplement

FDA Disclaimer Statement

This product has not been evaluated by the FDA. This product is not intended to diagnose, cure, treat or prevent any disease.

FDA Statement of Identity

Dietary Supplement

Other Label Statements

General Statements: All Other Content

Ecological Formulas

Manufacturer & Distributor

Distributor

Cardiovascular Research, LTD.

1061-B Shary Circle, Concord, CA, 94518

Market Reference

$7.50 – $249.00· 40 listings

Cardiovascular Research Quercetin C
TheNatural.com
$10.16
Nature's Bounty Antioxidant Capsules with Ester-C
Walmart4.8(9)
$19.77
Quercetin-C 90 caps
Professional Supplement Center4.6(18)
$21.99
Walgreens Quercetin Plus Zinc Capsules
Walgreens.com
$19.99
Research Labs Antioxidant 240 Caps
Walmart - Research Labs LLC4.6(64)
$17.99
The Vitamin Shoppe Quercetin + C
The Vitamin Shoppe4.7(49)
$24.99
Life Extension Vitamin C and Bio-Quercetin Phytosome
Life Extension4.8(3100)
$7.50Lowest
GNC Quercetin 500Mg
GNC4.6(118)
$24.99

Where to Buy Locally

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

Showing representative supplement & health retailers — search above for stores in your area.

The Vitamin Shoppe
4.6 (51)
Vitamin & supplements store
2545 Vestal Pkwy E Ste 2, Vestal, NY 13850
Directions (607) 729-4960
Down to Earth Whole Foods
4.8 (124)
Vitamin & supplements store
305 Grant Ave, Endicott, NY 13760
Directions (607) 785-2338
Lifestream Nutritionals
5.0 (1)
Vitamin & supplements store
300 Main St, Vestal, NY 13850
Directions (607) 444-8015
Walgreens
3.4 (65)
Vitamin & supplements store
100 E Main St, Endicott, NY 13760
Directions (607) 754-4594
GNC
4.4 (162)
Vitamin & supplements store
4706 Vestal Pkwy E Ste 3, Vestal, NY 13850
Directions (607) 729-2390
CVS
3.8 (45)
Vitamin & supplements store
1008 Union Center Maine Hwy, Endicott, NY 13760
Directions (607) 754-2240
Your CBD Store - Vestal, NY
5.0 (778)
Vitamin & supplements store
1901 Vestal Pkwy E Ste. 1b, Vestal, NY 13850
Directions (607) 444-3048
CVS Pharmacy
3.9 (24)
Pharmacy
1008 Union Center Maine Hwy, Endicott, NY 13760
Directions (607) 754-2240

Research & Studies

… High-Dose Vitamin C Supplement Enriched with a Low Dose of Bioflavonoids; In Vitro Assessment and In Vivo Evaluation Through a Clinical Study in Healthy …
V Chrysikopoulou, A Rampaouni, E Koutsia… - Nutrients, 2025 - mdpi.com
… in several dietary supplements due to its proposed health-… synergistic antioxidant and cardiovascular benefits. However, the … This study aimed to evaluate the antioxidant potential and …
202512 citations
Quercetin reduces vascular senescence and inflammation in symptomatic male but not female coronary artery disease patients
P Mury, O Dagher, A Fortier, A Diaz, Y Lamarche… - Aging …, 2025 - Wiley Online Library
… Recent studies suggest that vascular … in coronary artery disease (CAD) patients remains unknown. In a randomized, double‐blind trial, 97 patients (78 men) undergoing coronary artery …
202525 citations
Endogenous and exogenous mediators of quercetin bioavailability
Y Guo, RS Bruno - The Journal of nutritional biochemistry, 2015 - Elsevier
… studies suggest that higher dietary intakes of quercetin decease cardiovascular disease (CVD) risk… of its health benefits. Bioavailability of dietary constituents is a critical mediator of their …
2015311 citations
Latest Updates on Pharmaceutical Properties of Quercetin and its Derivatives as Bioactive Flavonoids in Health Protection and Disease Treatment
M Barazesh, M Malekpour, M Akhzari… - Current Drug …, 2026 - benthamdirect.com
2026
Pharmacokinetics and bioavailability of the flavonol quercetin in humans
EU Graefe, H Derendorf, M Veit - International journal of clinical …, 1999 - researchgate.net
… acid metabolites derived from quercetin C-ring cleavage were … applied as tablets or capsules in human studies. In rats it was … for cardiovascular disease were observed. However, in both …
1999259 citations
Integrating network pharmacology and experimental verification to explore the pharmacological mechanisms of Guanxin Shutong capsule in treating heart …
Z Yang, J Li, H Song, H Wu, S Zhang, Z Mei, Y Xue… - Medicine, 2024 - journals.lww.com
… used for a long time to treat cardiovascular disease. [ 7 , 8 ] One such medication that has gained attention in the treatment of cardiovascular disease is the Guanxin Shutong capsule (…
20244 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2023-04-21. DSLD Label ID: 271538. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.