Quercetin 300®

Other Combinations

Brand: Allergy Research Group

CapsuleOther CombinationsOff Market

Product label for Quercetin 300 — Click to view full label

Net Contents

60 Vegetarian Capsule(s)

Serving Size

1–2 Capsule(s)

Servings Per Container

Supplement Form

Capsule

Bar Code (UPC/SKU)

7 13947 70060 4

Product Version

Rev. 003

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

Every active ingredient discloses a specific amount per serving.

2% Daily Value Coverage

2 ingredients report a %DV; 2 meet or exceed 100% DV.

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

Supplement Facts

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

Ingredient	Amount Per Serving	% Daily Value
Vitamin C(Ascorbic Acid)	150 mg	250%
Vitamin E(DL-Alpha-Tocopheryl Acetate)	140 IU	467%
Quercetin	600 mg	—

Not Present

Other Ingredients

Hydroxypropyl MethylcelluloseMicrocrystalline CelluloseSilicon DioxideL-Leucine

Target Groups

Adult (18 - 50 Years)No Allergies

Label Claims

All OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Suggested Use As a dietary supplement, 1 or 2 capsules one to three times daily with meals, or as directed by a healthcare practitioner.

Storage

Keep in a cool, dry place, tightly capped.

Formulation

Formula re: Contains

Provides high potency quercetin, derived from a non-citrus source, hypoallergenic plant source, stabilized with additional antioxidants so as not to auto-oxidize (degrade spontaneously).*

Formula re: Type

HYPOALLERGENIC

FDA Statements

FDA Disclaimer Statement

This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

FDA Statement of Identity

dietary supplement

Other Label Statements

General Statements: All Other Content

00030-1 EXP 7-13

General: Product/Version Code

Rev. 003

Manufacturer & Distributor

Distributor

Allergy Research Group

Alameda, CA, 94502

Market Reference

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Where to Buy Locally

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The Vitamin Shoppe
4.6 (154)
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2600 S College Ave, Fort Collins, CO 80525
Directions (970) 204-6653
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2842 Council Tree Ave #107, Fort Collins, CO 80525
Directions (970) 223-1283
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Directions (970) 286-2788
Colorado Nutrition
4.8 (17)
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3926 John F Kennedy Pkwy UNIT 9A, Fort Collins, CO 80525
Directions (720) 255-1627
Miracles of Health
5.0 (44)
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522 W 66th St, Loveland, CO 80538
Directions (970) 292-8158
Natural Grocers
4.5 (588)
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4318 S College Ave, Fort Collins, CO 80525
Directions (970) 266-9919
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3157 N Garfield Ave, Loveland, CO 80538
Directions (970) 541-4153
GMO Free Health
Vitamin & supplements store
3827 Sky Gazer Ln, Fort Collins, CO 80528
Directions (800) 841-0278

Research & Studies

Quercetin: a versatile flavonoid
P Lakhanpal, DK Rai - Internet Journal of Medical Update, 2007 - academia.edu
… of cardiovascular health, eye diseases, allergic disorders, arthritis… another study by healthy human volunteers, supplementing … Quercetin is available in the form of capsules (250 mg, 300 …
2007742 citations
Effects of repeated oral intake of a quercetin-containing supplement on allergic reaction: a randomized, placebo-controlled, double-blind parallel-group study.
S Yamada, M Shirai, Y Inaba… - … Review for Medical & …, 2022 - europeanreview.org
… healthy adults of both sexes ingested the same test food as that used in the present study, containing quercetin in … significantly, suggesting that quercetin also has an immunomodulating …
202241 citations
Dietary polyphenols—Natural bioactive compounds with potential for preventing and treating some allergic conditions
A Dębińska, B Sozańska - Nutrients, 2023 - mdpi.com
… , may be responsible for the health benefits of this dietary pattern, … of allergic airway inflammation as quercetin significantly … growing tendency to self-medicate with health …
202362 citations
Quercetin and its anti-allergic immune response
J Mlcek, T Jurikova, S Skrovankova, J Sochor - Molecules, 2016 - mdpi.com
… of quercetin is the main ingredient of many potential anti-allergic drugs, supplements and … Food allergies are a relevant and common health complaint with an increasing prevalence. …
2016666 citations
Quercetin and its lecithin-based formulation: potential applications for allergic diseases based on a narrative review
M Naso, C Trincianti, MA Tosca, G Ciprandi - Nutrients, 2025 - mdpi.com
… in food supplements to manage patients with allergic diseases. Moreover, this review introduces a new quercetin … and its lecithin-based formulation were evaluated in 12 healthy human …
202514 citations
Quercetin with the potential effect on allergic diseases
M Jafarinia, M Sadat Hosseini, N Fazel, F Fathi… - Allergy, Asthma & …, 2020 - Springer
… The results strongly suggested that quercetin will be well-qualified as a supplement for the … Allergic diseases are a big concern and have high health care costs. In addition, the use of …
2020257 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2013-04-25. DSLD Label ID: 20331. 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.