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Quercetin Drop Uric Acid 500 mg

4.6
★ ★ ★ ★ ★
(156 ratings)
Vitamin C 500 mg
Luteolin 57 mg
Product Image
Score72
A targeted quercetin and vitamin C blend with luteolin, tart cherry, and a named probiotic. Strong ingredient breadth is tempered by missing standardization and viability details.
How scoring works
Tablet
Quantity:60 Tablet(s) • (30 servings)
Goals:
Immunity
Anti-Inflammatory Support
General Health
Skin Health

Score 72

A targeted quercetin and vitamin C blend with luteolin, tart cherry, and a named probiotic. Strong ingredient breadth is tempered by missing standardization and viability details.
How scoring works
$22.39($0.74 per serving)
iHerb
$ 22.39
Pure Formulas
$ 22.39
Vitacost
$ 24.63
Report prices

Analysis

Vitamin C and quercetin are supplied at substantial amounts and form the clearest antioxidant core. Luteolin and tart cherry broaden plant-compound coverage, making the formula more targeted than a basic vitamin C tablet.

The named Bacillus subtilis DE111 strain is a useful disclosure, but no viable organism count is supplied. Tart cherry lacks standardization detail, and the specialized quercetin form is not fully explained in the supplied data.

The combination best fits people specifically interested in uric-acid and inflammatory-balance support rather than general nutrition. It offers meaningful ingredient breadth but less transparency than the headline amounts initially suggest.

Who is it for
  • Adults seeking quercetin-centered antioxidant support
  • Users interested in uric-acid support
  • People wanting a multi-ingredient formula
Best for
  • Antioxidant and inflammatory-balance support
  • Quercetin plus vitamin C
  • Targeted uric-acid formulas

Pros

  • Substantial quercetin and vitamin C amounts
  • Luteolin adds complementary flavonoid coverage
  • Probiotic strain is named

Cons

  • Probiotic viability count is not supplied
  • Tart cherry standardization is unclear
  • Formula is not designed for broad foundational nutrition

Warnings

  • Quercetin can interact with some medicines, including certain anticoagulants and drugs transported by P-glycoprotein; users of these medicines should review the formula with a pharmacist.

Nutrient quality

89 Highest impact

Plain ascorbic acid is basic, while quercetin, luteolin, and tart cherry broaden the antioxidant profile. Vitamin C and quercetin have substantial listed amounts, while the smaller additions provide secondary support.

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Ingredient transparency

81 Highest impact

Every listed active ingredient has a specific amount. A complete inactive ingredient list was not supplied.

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Customer satisfaction

60 Moderate impact

The available aggregate rating is strong for this category. No firsthand outcome details were supplied, so alignment with the intended use is uncertain.

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Value for money

51 Moderate impact

The broader antioxidant formula adds quality, but the serving cost remains high. The product is less competitive than simpler antioxidant formulas on serving value.

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Report analysis

Goals

Immunity
Immunity
Impact
Highest effect
A Goal FitA Strength of SupportB+ CoverageA+ Formula Quality
Vitamin C · 500 mg

Vitamin C and quercetin provide complementary antioxidant and immune-signaling support at meaningful amounts. Luteolin, tart cherry, and a defined probiotic strain broaden the approach without creating an excessively crowded formula.

Vitamin C reaches the main target and quercetin is supplied at a substantial disclosed amount. Plain ascorbic acid is basic, while several companion ingredients lack active-marker or viability details.

Study evidence
Vitamin C Supportive 53 studies
Anti-Inflammatory Support
Cellular Defense
Anti-Inflammatory Support
Impact
Highest effect
B+ Goal FitB+ Strength of SupportA- CoverageA Formula Quality
Vitamin C · 500 mg

Quercetin, luteolin, tart cherry, and vitamin C create a targeted antioxidant and inflammatory-signaling combination. The quercetin and vitamin C amounts are substantial, while luteolin adds a complementary flavonoid mechanism.

Tart cherry is modest and the specialized quercetin delivery details are not fully explained. The formula still offers strong depth and breadth for inflammatory balance, particularly where uric acid and oxidative stress are concerns.

Study evidence
Luteolin Not classified

No linked studies yet.

Vitamin C Supportive 50 studies
General Health
General Health
Impact
High effect
C Goal FitB- Strength of SupportC CoverageB Formula Quality
Vitamin C · 500 mg

Vitamin C and quercetin provide antioxidant support that can contribute to general wellness. The disclosed vitamin C serving is meaningful, and the flavonoid blend has a clear theme.

The formula is primarily aimed at uric-acid support rather than broad foundational nutrition. Luteolin, tart cherry, and the probiotic add narrower evidence with limited relevance to everyday gap coverage.

Study evidence
Vitamin C Supportive 56 studies
Skin Health
Skin Health
Impact
Moderate effect
C Goal FitB- Strength of SupportD+ CoverageD+ Formula Quality
Vitamin C · 500 mg

Vitamin C, quercetin, luteolin, and tart cherry provide antioxidant support with an indirect connection to skin resilience. Vitamin C has an established collagen role, but skin-specific human evidence for the full uric-acid formula is limited.

Vitamin C and quercetin are substantial, while luteolin and tart cherry are secondary. The polyphenols are compatible, although the product is logically designed for uric acid rather than skin.

Study evidence
Vitamin C Supportive 53 studies

Ingredients

IngredientAmount per serving
Vitamin C (Ascorbic Acid)
 500 mg
D.r.-Quercetin
570 mg
D.r.-Luteolin
57 mg
Tart Cherry Extract
43 mg
Bacillus subtilis DE111
5 mg
Gluten Free Adults 18–50 Vegan Dairy Free Vegetarian
Report overview
Vitamin C (Ascorbic Acid) · 500 mg OverallScore52
F Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyF Value

Plain ascorbic acid provides no buffering or enhanced delivery advantage. The 500 mg serving is appropriate, while the supplied data does not identify inactive ingredients. The multi-ingredient formula carries a high cost when judged only by its vitamin C contribution.

View ingredientView products
Loading alternative details
89 Performance

Pure Buffered Calcium Ascorbate

NOW
A more performance-focused option combines 890 mg of vitamin C as Calcium Ascorbate with 100 mg of Calcium. Compared with the original's 500 mg of vitamin C as Ascorbic Acid, the larger disclosed amount may better fit users seeking higher-potency vitamin C.
88 Performance

Buffered Gold C

California Gold Nutrition
A more performance-focused option combines 1,000 mg of vitamin C as Sodium Ascorbate with a focused single-nutrient formula. Compared with the original's 500 mg of vitamin C as Ascorbic Acid, the larger disclosed amount may better fit users seeking higher-potency vitamin C.
85 Performance

Ester-C Plus 1000 mg Vitamin C

Solgar
A more performance-focused option combines 1,000 mg of vitamin C as Ester-C with 108 mg of Calcium and 200 mg of Citrus Bioflavonoids Complex. Compared with the original's 500 mg of vitamin C as Ascorbic Acid, the larger disclosed amount may better fit users seeking higher-potency vitamin C.
86 Budget

C

Swanson
The lower serving cost still provides 1,000 mg of vitamin C as Calcium Ascorbate with 120 mg of Calcium and 200 mg of Bioflavonoids. Compared with the original's 500 mg of vitamin C as Ascorbic Acid, the larger disclosed amount may better fit users seeking higher-potency vitamin C.
87 Budget

Pure Buffered Magnesium Ascorbate

NOW
The lower serving cost still provides 820 mg of vitamin C as Magnesium Ascorbate with 60 mg of Magnesium. Compared with the original's 500 mg of vitamin C as Ascorbic Acid, the larger disclosed amount may better fit users seeking higher-potency vitamin C.
88 Budget

Sodium Ascorbate Capsules

NutriBiotic Immunity
The lower serving cost still provides 850 mg of vitamin C as Sodium Ascorbate with a focused single-nutrient formula. Compared with the original's 500 mg of vitamin C as Ascorbic Acid, the larger disclosed amount may better fit users seeking higher-potency vitamin C.
85 Value

C-500 With Rose Hips

NOW
The favorable serving cost pairs 500 mg of vitamin C as Ascorbic Acid with 40 mg of Rose Hips powder. The vitamin C amount is similar to the original, while the added ingredients and label details determine the more useful fit.
88 Value

Sodium Ascorbate

NutriBiotic Immunity
The favorable serving cost pairs 1,100 mg of vitamin C as Sodium Ascorbate with a focused single-nutrient formula. Compared with the original's 500 mg of vitamin C as Ascorbic Acid, the larger disclosed amount may better fit users seeking higher-potency vitamin C.
87 Value

100% Pure Vitamin C Powder

Swanson Premium Brand
The favorable serving cost pairs 1,000 mg of vitamin C as Ascorbic Acid with a focused single-nutrient formula. Compared with the original's 500 mg of vitamin C as Ascorbic Acid, the larger disclosed amount may better fit users seeking higher-potency vitamin C.
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Relation between plasma ascorbic acid and mortality in men and women in EPIC-Norfolk prospective study: a prospective population study. European Prospective Investigation into Cancer and Nutrition.
    Khaw KT; Bingham S; Welch A; Luben R; Wareham N; Oakes S; Day N · Lancet (London, England) · 2001
    Cohort study19,496 participantsGeneral Health forVitamin C
  2. Mortality in randomized trials of antioxidant supplements for primary and secondary prevention: systematic review and meta-analysis.
    Bjelakovic G; Nikolova D; Gluud LL; Simonetti RG; Gluud C · JAMA · 2007
    Meta-analysis232,606 participants68 studies pooledGeneral Health forVitamin C
  3. Vitamin C intake and multiple health outcomes: an umbrella review of systematic reviews and meta-analyses.
    Xu K; Peng R; Zou Y; Jiang X; Sun Q; Song C · International journal of food sciences and nutrition · 2022
    Meta-analysis76 studies pooledGeneral Health forVitamin C
  4. Efficacy of Vitamin C as Glucocorticoid Substitute for Reducing Pain and Inflammation After Total Hip Arthroplasty: A Randomized Controlled Trial.
    Jiang W; Xu H; Jiang X; Zhan Y; Ju Y; Xie J; Huang Z; Huang Q; Pei F · The Journal of bone and joint surgery. American volume · 2025
    Randomized trial107 participantsAnti-Inflammatory Support forVitamin C
  5. The Impact of Vitamin C on Analgesic, Anti-inflammatory, and Hemostatic Outcomes After Total Hip and Knee Arthroplasty: A Systematic Review and Meta-Analysis.
    Moftakhari Hajimirzaei S; Bagherzadeh Cham M; Dolikhani M; Tabatabaee SM; Ebrahimpour A · The archives of bone and joint surgery · 2026
    Meta-analysis1,162 participants10 studies pooledAnti-Inflammatory Support forVitamin C
  6. The impact of vitamin C supplementation on the perioperative outcomes after total hip and knee arthroplasty: a systematic review and meta-analysis.
    Liu X; Guo J; Li Y; Yang Y; Liu M; Gao Q; Yang Y; Wu X; Yue C · BMC musculoskeletal disorders · 2026
    Meta-analysis852 participants8 studies pooledAnti-Inflammatory Support forVitamin C
  7. Therapeutic Impact of Ascorbic Acid on Oral and Periodontal Tissues: A Systematic Literature Review.
    Ruzijevaite G; Acaite E; Jagelaviciene E · Medicina (Kaunas, Lithuania) · 2025
    Systematic review811 participants17 studies pooledAnti-Inflammatory Support forVitamin C
  8. Oral vitamin C administration reduces early recurrence rates after electrical cardioversion of persistent atrial fibrillation and attenuates associated inflammation.
    Korantzopoulos P; Kolettis TM; Kountouris E; Dimitroula V; Karanikis P; Pappa E; Siogas K; Goudevenos JA · International journal of cardiology · 2005
    Randomized trial44 participantsAnti-Inflammatory Support forVitamin C
  9. Dietary intake and blood concentrations of antioxidants and the risk of cardiovascular disease, total cancer, and all-cause mortality: a systematic review and dose-response meta-analysis of prospective studies.
    Aune D; Keum N; Giovannucci E; Fadnes LT; Boffetta P; Greenwood DC; Tonstad S; Vatten LJ; Riboli E; Norat T · The American journal of clinical nutrition · 2019
    Meta-analysis69 studies pooledGeneral Health forVitamin C
  10. Scientific Opinion on the substantiation of a health claim related to vitamin C and increasing non haem iron absorption pursuant to Article 14 of Regulation (EC) No 1924/2006.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusGeneral Health forVitamin C
  11. Vitamin C Depletion and All-Cause Mortality in Renal Transplant Recipients.
    Sotomayor CG; Eisenga MF; Gomes Neto AW; Ozyilmaz A; Gans ROB; Jong WHA; Zelle DM; Berger SP; Gaillard CAJM; Navis GJ; Bakker SJ · Nutrients · 2018
    Cohort study598 participantsGeneral Health forVitamin C
  12. Associations of Serum Biomarkers of Fruit and Vegetable Intake With the Risk of Cause-Specific Mortality and All-Cause Mortality: A National Prospective Cohort Study.
    Pu L; Zhang R; Wang X; Zhao T; Sun H; Han L · Frontiers in nutrition · 2022
    Cohort study12,530 participantsGeneral Health forVitamin C
  13. Vitamin C and contribution to the normal function of the immune system: evaluation of a health claim pursuant to Article 14 of Regulation (EC) No 1924/2006.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusImmunity forVitamin C
  14. Therapeutic effects of high-dose vitamin C supplementation in patients with COVID-19: a meta-analysis.
    Sun L; Zhao JH; Fan WY; Feng B; Liu WW; Chen RQ; Ban C; Dang AG; Wang M; Luo KT; Zhou GY; Yu FF; Ba Y · Nutrition reviews · 2024
    Meta-analysis2,334 participants14 studies pooledImmunity forVitamin C
  15. Effect of micronutrient supplements on influenza and other respiratory tract infections among adults: a systematic review and meta-analysis.
    Abioye AI; Bromage S; Fawzi W · BMJ global health · 2021
    Meta-analysisImmunity forVitamin C
  16. New evidence for antioxidant properties of vitamin C.
    Vojdani A; Bazargan M; Vojdani E; Wright J · Cancer detection and prevention · 2001
    Randomized trial20 participantsImmunity forVitamin C
  17. Enhanced Vitamin C Delivery: A Systematic Literature Review Assessing the Efficacy and Safety of Alternative Supplement Forms in Healthy Adults.
    Calder PC; Kreider RB; McKay DL · Nutrients · 2025
    Systematic review13 studies pooledImmunity forVitamin C
  18. Evaluation of the anti-wrinkle effect of an ascorbic acid-loaded dissolving microneedle patch via a double-blind, placebo-controlled clinical study.
    Lee C; Yang H; Kim S; Kim M; Kang H; Kim N; An S; Koh J; Jung H · International journal of cosmetic science · 2017
    Randomized trial23 participantsSkin Health forVitamin C
  19. Comparative Study on the Outcome of Periorbital Wrinkles Treated with Laser-Assisted Delivery of Vitamin C or Vitamin C Plus Growth Factors: A Randomized, Double-blind, Clinical Trial.
    Machado BHB; Frame J; Zhang J; Najlah M · Aesthetic plastic surgery · 2021
    Randomized trial149 participantsSkin Health forVitamin C
  20. Randomized trial of topical ascorbic acid in DMSO versus imiquimod for the treatment of basal cell carcinoma.
    Burke B; Bailie JE · Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie · 2022
    Randomized trial25 participantsSkin Health forVitamin C
  21. Vitamin C improves healing of foot ulcers: a randomised, double-blind, placebo-controlled trial.
    Gunton JE; Girgis CM; Lau T; Vicaretti M; Begg L; Flood V · The British journal of nutrition · 2022
    Randomized trial16 participantsSkin Health forVitamin C
  22. Dietary nutrient intakes and skin-aging appearance among middle-aged American women.
    Cosgrove MC; Franco OH; Granger SP; Murray PG; Mayes AE · The American journal of clinical nutrition · 2007
    Cross-sectional study4,025 participantsSkin Health forVitamin C