Net Contents
90 Capsule(s)
Serving Size
2 Capsule(s)
Servings Per Container
Not specified
Supplement Form
Capsule
Bar Code (UPC/SKU)
6 96859 13069 4
Product Version
Not specified
Suggested Use
DirectionsTake two or three capsules daily; or as directed by a physician.
Market Reference
Cardiovascular Research Quercetin C
TheNatural.com$10.16Nature's Bounty Antioxidant Capsules with Ester-C
Walmart4.8(9)$19.77Quercetin-C 90 caps
Professional Supplement Center4.6(18)$21.99Walgreens Quercetin Plus Zinc Capsules
Walgreens.com$19.99Research Labs Antioxidant 240 Caps
Walmart - Research Labs LLC4.6(64)$17.99The Vitamin Shoppe Quercetin + C
The Vitamin Shoppe4.7(49)$24.99Life Extension Vitamin C and Bio-Quercetin Phytosome
Life Extension4.8(3100)$7.50LowestGNC 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
Down to Earth Whole Foods
4.8 (124)Vitamin & supplements store
305 Grant Ave, Endicott, NY 13760
Lifestream Nutritionals
5.0 (1)Vitamin & supplements store
300 Main St, Vestal, NY 13850
Walgreens
3.4 (65)Vitamin & supplements store
100 E Main St, Endicott, NY 13760
GNC
4.4 (162)Vitamin & supplements store
4706 Vestal Pkwy E Ste 3, Vestal, NY 13850
CVS
3.8 (45)Vitamin & supplements store
1008 Union Center Maine Hwy, Endicott, NY 13760
Your CBD Store - Vestal, NY
5.0 (778)Vitamin & supplements store
1901 Vestal Pkwy E Ste. 1b, Vestal, NY 13850
CVS Pharmacy
3.9 (24)Pharmacy
1008 Union Center Maine Hwy, Endicott, NY 13760
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 citationsQuercetin 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 citationsEndogenous 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 citationsLatest 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
2026Pharmacokinetics 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 citationsIntegrating 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.
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