Quercetin +®

Other Combinations

Brand: Quantum Health

CapsuleOther CombinationsOn Market

Functions

Immune Support

Product label for Quercetin + — Click to view full label

Net Contents

90 Capsule(s)

Serving Size

1 Capsule(s)

Servings Per Container

Supplement Form

Capsule

Bar Code (UPC/SKU)

0 46985 00115 1

Product Version

R0323

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 Capsule(s) · 1 per day

Ingredient	Amount Per Serving	% Daily Value
Vitamin C(Ascorbic Acid)	100 mg	111%
Zinc(Zinc Oxide)	11 mg	100%
Quercetin Dihydrate(Sophora japonica Bud Extract)	500 mg	—

Not Present

Other Ingredients

HypromelloseMagnesium StearateSilicon DioxideMicrocrystalline Cellulose

Target Groups

Adult (18 - 50 Years)

Label Claims

NutrientAll OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Suggested use: Adults take 1 capsule daily or as directed by a doctor.

Warnings & Precautions

Precautions re: Children

Warning: Keep out of reach of children.

Precautions re: Pregnant or Nursing or Prescription Medications

If pregnant or breastfeeding, or if you have a medical condition, or if taking any medications or other supplements, consult a health professional before use.

Precautions re: All Other

Safety sealed for your protection.

Formulation

Formulation re: Other

Immune support

Formula re: Contains

500 mg quercetin 100 mg of vitamin C, 11 mg zinc in each serving

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 disease.

FDA Statement of Identity

Dietary supplement

Manufacturer & Distributor

Distributor

Quantum Health

PO Box 2791, Eugene, OR, 97402

800-448-1448

Market Reference

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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.

GNC
4.1 (34)
Vitamin & supplements store
2815 Godwin Blvd, Suffolk, VA 23434
Directions (757) 923-3712
The Vitamin Shoppe
4.5 (179)
Vitamin & supplements store
1412 Greenbrier Pkwy #125, Chesapeake, VA 23320
Directions (757) 366-9494
My Supplements
Vitamin & supplements store
6020 Bradford Dr Unit A, Suffolk, VA 23435
Directions (678) 235-4108
GNC
4.4 (30)
Vitamin & supplements store
2400 Chesapeake Square Ring Rd #101, Chesapeake, VA 23321
Directions (757) 967-8226
Norfolk Nutrition Corner
4.9 (80)
Vitamin & supplements store
1900 Monticello Ave, Norfolk, VA 23517
Directions (757) 904-1589
MASF Supplements
4.9 (32)
Vitamin & supplements store
200 Tintern Ct #111, Chesapeake, VA 23320
Directions (757) 410-7459
The Vitamin Shoppe
4.6 (175)
Vitamin & supplements store
729 W 21st St, Norfolk, VA 23517
Directions (757) 627-1701
GNC
4.0 (26)
Vitamin & supplements store
6255 College Dr #R-1, Suffolk, VA 23435
Directions (757) 638-1234

Research & Studies

Co‐encapsulation of biodegradable nanoparticles with silicon quantum dots and quercetin for monitored delivery
Q Wang, Y Bao, J Ahire, Y Chao - Advanced healthcare …, 2013 - Wiley Online Library
… of quercetin and fluorescent Silicon quantum dots (SiQDs) in … to improve the biocompatibility of quercetin. Fluorescent imaging … HepG2 cells are incubated with quercetin and SiQDs dual-…
201393 citations
Enhancement of anti arthritic effect of quercetin using thioglycolic acid-capped cadmium telluride quantum dots as nanocarrier in adjuvant induced arthritic …
R Jeyadevi, T Sivasudha, A Rameshkumar… - Colloids and Surfaces B …, 2013 - Elsevier
In this present study, we investigated thio glycolic acid-capped cadmium telluride quantum dots (TGA-CdTe QDs) as nano carrier to study the antiarthritic activity of quercetin on adjuvant …
201375 citations
Conformational diversity of the quercetin molecule: A quantum-chemical view
OO Brovarets', DM Hovorun - Journal of Biomolecular Structure and …, 2020 - Taylor & Francis
… This paper focuses on the comprehensive conformational analysis of the quercetin molecule … Quantum-mechanical calculations indicate that conformers of the quercetin molecule are …
202040 citations
Quercetin carbon quantum dots: dual-target therapy for intracerebral hemorrhage in mice
G Jia, X Yang, Y Yu, Y Li, Z Zhang, X Tang, Q Wang… - Molecular Brain, 2025 - Springer
… the excellent biological properties of quercetin quantum dots and the advantages of multi-… development of quercetin drugs. In this study, we synthesized quercetin carbon quantum dots …
202512 citations
Analysis of chemical-quantum interactions between quercetin, sars-cov-2 proteins, and covid-19
M González-Pérez, JC Colín-Ortega, E Elizabeth - world, 2021 - researchgate.net
… The objective of this article was to analyze the chemical-quantum interactions between quercetin and the spike proteins of the sars-cov-2 causing covid-19. Hyperchem software was …
20214 citations
A Quantum Chemical Study on the Antioxidant Properties of Myricetin, Quercetin, and Kaempferol Using Density Functional Theory (DFT) and Molecular …
M Elik - Cumhuriyet Science Journal, 2024 - dergipark.org.tr
… While showing substantial antioxidant potential, kaempferol ranked third due to its lower energy stability and dipole moment than quercetin and myricetin. In conclusion, quercetin is the …
20242 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: 320537. 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.