Quercetin 500®
Other CombinationsBrand: ProCaps Laboratories
Functions
Net Contents
240 Easy-To-Swallow Capsule(s)
Serving Size
1 Capsule(s)
Servings Per Container
240
Supplement Form
Capsule
Bar Code (UPC/SKU)
712545
Product Version
607950-03M
Label Analysis
Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.
2 distinct active ingredients are disclosed in Supplement Facts.
Label includes a proprietary blend, so some individual amounts are not itemized.
2 ingredients report an established %DV per serving.
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
Contains
- Wheat
- Soy
- Gluten
Free From
- Milk
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: 1 Capsule(s) · 1 per day
| Ingredient | Amount Per Serving | % Daily Value |
|---|---|---|
| Vitamin C(Calcium Ascorbate, Calcium Palmitate) | 25 mg | 28% |
| Quercetin Phospholipid Complex(Quercetin, Phospholipids, Quercetin Dihydrate) | 25 mg | 28% |
| Quercetin | 235 mg | — |
| Phospholipids | 135 mg | — |
Percent Daily Values (%DV).
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
Suggested Use Consume one capsule daily. You can increase your intake as required or as guided by your physician.
Formulation
Formulation re: Other
Since 1979, unsurpassed purity, quality and efficacy. 100% solar production Zero-carbon footprint
Formulation re: Other
100% Solar Optimal Absorption and Activity
Formula re: Contains
Phospholipid Complex
Formula re: Contains
Quercetin 500 provides the unique benefits of one of nature’s most powerful protective molecules. Like so many of nature’s most beneficial plant-based compounds, quercetin is a polyphenol and flavonoid. In fact, flavonoid polyphenols are the beneficial compounds that make many healthy foods so healthy, such as green tea, red wine and chocolate. Quercetin is uniquely abundant in capers, red onions and cilantro, but also rich in many other healthy foods. Quercetin has long been the subject of extensive research validating its protective benefits to diverse systems in the body. Quercetin is well known for its benefits promoting healthy circulation and supporting the structure of our blood vessels, veins and capillaries. More recently, quercetin has been recognized for its supportive benefits to the cardiopulmonary system, including the fragile tissues of both the heart and lungs. Quercetin has also been shown to support immune system function, as well as the normally problematic aging prostate gland. Quercetin’s impressive body of research has made it a popular ingredient in nutritional supplements; however, its benefits are limited due to its extremely poor absorption. We overcome these absorptive challenges by complexing quercetin with phosphatidyl choline (PC), which is the predominant phospholipid found in the brain and liver. This unique phospholipid complex protects quercetin from digestive damage while also dramatically increasing its absorption. This natural combination of quercetin with PC ensures you receive all the remarkable benefits of this extraordinary natural molecule.
Formulation re: Does NOT Contain
Contains no additives or common allergens Contains no milk, soy, yeast, corn, wheat, gluten, sodium, salt, sugar, fat, cholesterol, color, preservative, common allergens, genetically modified (GMO) ingredients or manufacturing additives.
FDA Statements
FDA Statement of Identity
Dietary Supplement
FDA Disclaimer Statement
These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.
Other Label Statements
General Statements: All Other Content
For questions about the use of this product call 800.800.1200.
General Statements: All Other Content
Questions? Reorders? 800.800.1200 Procaps.com
Brand IP Statement(s) re: (c), (TM), (SM)
Copyright 2023 ProCaps Laboratories
General Statements: All Other Content
Andrew Lessman
Manufacturer & Distributor
Manufacturer
ProCaps Labs
Henderson, NV, 89011
800.800.1200
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 Expert Nutrition Center
4.6 (33)Vitamin & supplements store
10210 S Dolfield Rd, Owings Mills, MD 21117
The Vitamin Shoppe
4.3 (157)Vitamin & supplements store
9404 Reisterstown Rd, Owings Mills, MD 21117
Organics Nature
3.0 (4)Vitamin & supplements store
9633 Liberty Rd Suite K, Randallstown, MD 21133
GNC
3.4 (40)Vitamin & supplements store
9908 Reisterstown Rd, Owings Mills, MD 21117
Wellpharma Pharmacy (Retail & Compounding)
5.0 (61)Vitamin & supplements store
9818 Liberty Rd STE B, Randallstown, MD 21133
Walgreens
2.8 (76)Vitamin & supplements store
9110 Liberty Rd Walgreens, Randallstown, MD 21133
e-NutritionStore.com
5.0 (10)Vitamin & supplements store
6010 Meadowridge Center Dr K, Elkridge, MD 21075
The Vitamin Shoppe
4.7 (37)Vitamin & supplements store
6400 Ridge Rd Suite F2, Sykesville, MD 21784
Research & Studies
Safety aspects of the use of quercetin as a dietary supplement
S Andres, S Pevny, R Ziegenhagen… - Molecular nutrition & …, 2018 - Wiley Online Library
… In Canada, quercetin may be used in “Natural Health Products” with two different … critical health aspects regarding the safe use of quercetin as single compound in dietary supplements. …
2018712 citationsQuercetin supplementation does not alter antioxidant status in humans
RA Shanely, AM Knab, DC Nieman, F Jin… - Free radical …, 2010 - Taylor & Francis
… blood samples show that plasma quercetin increased in a dose-… quercetin supplementation over 12 weeks in doses of 500 mg or 1000 mg/day significantly increased plasma quercetin …
2010105 citationsInfluence of quercetin supplementation on disease risk factors in community-dwelling adults
AM Knab, RA Shanely, DA Henson, F Jin… - Journal of the American …, 2011 - Elsevier
… The objective of this study was to investigate the effect of quercetin, vitamin C, and niacin supplements (500 mg quercetin, 125 mg vitamin C, and 5 mg niacin [Q-500]; 1,000 mg …
201163 citationsPlatelet anti-aggregant activity and bioactive compounds of ultrasound-assisted extracts from whole and seedless tomato pomace
A Concha-Meyer, I Palomo, A Plaza, A Gadioli Tarone… - Foods, 2020 - mdpi.com
… ASEC3 showed higher concentrations of flavonoid compounds than ASTPEC3, except for quercetin, which was detected in tomato peels in higher concentrations than seeds, according …
202038 citationsMetabolic Activity of Anthocyanin Extracts Loaded into Non-ionic Niosomes in Diet-Induced Obese Mice: Colorado et al.
D Colorado, M Fernandez, J Orozco, Y Lopera… - Pharmaceutical …, 2020 - Springer
… On the other hand, a higher amount of other phenolic compounds is obtained, which include flavonoids such as quercetin that have been shown to exhibit high anti-inflammatory, …
202035 citationsEvaluation of the Hypoglycemic Effects of Flavonoids and Extracts from Jatropha gossypifolia L.
S Granados, N Balcázar, A Guillén, F Echeverri - Molecules, 2015 - mdpi.com
Jatropha gossypifolia L. (Euphorbiaceae) is a plant widely used in the treatment of type 2 diabetes mellitus (T2DM), but there are few scientific reports validating its activity in this area. In …
201544 citations
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2024-11-22. DSLD Label ID: 320266. 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.
Related Products

01-02 Enhanced Fat Melting Matrix
ATS Labs

1000 mg Vitamin C Acai Berry
Emergen-C

1000 mg Vitamin C Cranberry Pomegranate
Emergen-C

1000 MG Vitamin C Cranberry-Pomegranate
Emergen-C