Quercetin Plus Vitamin C®

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

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

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.

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

Not Present

• 

  Natural Factors C Extra + Quercetin

  Walmart - Pattern4.8(397)

  $13.97
• 

  California Gold Nutrition Quercetin Plus with Quercetin, Vitamin C, Citrus Bioflavonoids, Bromelain, Turmeric and Vitamin C

  iHerb4.7(380)

  $24.88
• 

  GoldN 5-in-1 Liquid Drops

  GoSupps.com

  $49.99
• 

  250 Capsules

  Wonder Laboratories5.0(3)

  $13.49
• 

  Quercetin Plus with Bromelain & Vitamin C

  Swanson Health Products4.6(111)

  $19.08
• 

  Solaray QBC Plex 60 Capsules

  Solaray4.8(483)

  $21.59
• 

  Nature's Bounty Antioxidant Capsules with Ester-C

  Walmart4.8(12)

  $19.77
• 

  Life Extension 60 Tablets

  Life Extension4.8(2900)

  $7.50Lowest

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

  4.4 (103)

  Vitamin & Supplements Shop

  3365 Washtenaw Ave, Ann Arbor, MI 48104, United States

  Directions+1 734-477-6897

• GNC

  3.9 (71)

  Vitamin & Supplements Shop

  3820 E Broad St, Columbus, OH 43213, United States

  Directions+1 614-236-8270

• The Vitamin Shoppe

  4.6 (107)

  Vitamin & Supplements Shop

  30730 Orchard Lake Rd, Farmington Hills, MI 48334, United States

  Directions+1 248-538-8301

• The Vitamin Shoppe

  4.5 (123)

  Vitamin & Supplements Shop

  4053 Morse Crossing, Columbus, OH 43219, United States

  Directions+1 614-478-2803

• The Vitamin Shoppe

  4.5 (180)

  Vitamin & Supplements Shop

  12687 Middlebelt Rd, Livonia, MI 48150, United States

  Directions+1 734-524-0343

• The Vitamin Shoppe

  4.4 (167)

  Vitamin & Supplements Shop

  300 John R Rd C, Troy, MI 48083, United States

  Directions+1 248-307-1227

• The Vitamin Shoppe

  4.6 (193)

  Vitamin & Supplements Shop

  21901 Eureka Rd, Taylor, MI 48180, United States

  Directions+1 734-287-0075

• The Vitamin Shoppe

  4.5 (168)

  Vitamin & Supplements Shop

  23051 Outer Dr W, Allen Park, MI 48101, United States

  Directions+1 313-278-5979

• … and antioxidant efficacy and synergy of a high-dose vitamin C supplement enriched with a low dose of bioflavonoids; in vitro assessment and in vivo evaluation …

  C Vasiliki, R Aikaterini, K Eleni, O Anna, M Nikolaos… - Nutrients, 2025 - search.proquest.com

  … Specifically, the combination of vitamin C and quercetin resulted inducing Nuclear Factor … Moreover, quercetin treatment has exhibited enhancement of anticancer effects of vitamin C via …

  202514 citations

• The effect of quercetin supplementation on selected markers of inflammation and oxidative stress

  G Askari, R Ghiasvand, A Feizi… - Journal of research …, 2012 - pmc.ncbi.nlm.nih.gov

  … of quercetin with ascorbate in enhancing quercetin biological … co-ingestion of quercetin with vitamin C, could improves its … , ingestion of quercetin with pro-oxidants like vitamin C, may …

  2012179 citations

• Quercetin and vitamin C: an experimental, synergistic therapy for the prevention and treatment of SARS-CoV-2 related disease (COVID-19)

  RML Colunga Biancatelli, M Berrill… - Frontiers in …, 2020 - frontiersin.org

  … There is evidence that vitamin C and quercetin co-… capacity of ascorbate to recycle quercetin, increasing its efficacy. … for the use of vitamin C and quercetin both for prophylaxis in high-…

  2020697 citations

• Effect of mixed flavonoids, n-3 fatty acids, and vitamin C on oxidative stress and antioxidant capacity before and after intense cycling

  SR McAnulty, DC Nieman… - … Nutrition and …, 2011 - journals.humankinetics.com

  … the effects of 1,000 mg quercetin + 1,000 mg vitamin C (QC); 1,000 mg quercetin, 1,000 mg vitamin C, 400 mg isoquercetin, 30 mg epigallocatechin gallate, and 400 mg n-3 fatty acids (…

  201158 citations

• Does quercetin and vitamin C improve exercise performance, muscle damage, and body composition in male athletes?

  G Askari, R Ghiasvand, J Karimian… - Journal of research …, 2012 - pmc.ncbi.nlm.nih.gov

  … In summary, intake of quercetin with vitamin C, may not improve the exercise performance and muscle damage but can reduce the body fat percent, probably. Thus, future studies …

  201260 citations

• Effects of flavonoids and vitamin C on oxidative DNA damage to human lymphocytes

  M Noroozi, WJ Angerson… - The American journal of …, 1998 - academic.oup.com

  … effect of quercetin and vitamin C at a … quercetin and vitamin C (each at 23.2 mol/L) on human lymphocytes in the comet assay. Quercetin was significantly more protective than vitamin C …

  1998598 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2016-04-22. DSLD Label ID: 58515. 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.