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Quercetin 20x Plus

product on market Capsule XYMOGEN Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 25% of ingredients have research evidence
B Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

This formula combines Vitamin C and Quercefit to support immune function and antioxidant activity, supported by moderate research evidence. Nettle leaf extract and N-acetyl cysteine are included for their potential anti-inflammatory and respiratory properties, though evidence for these specific applications is more limited. The ingredient profile maintains a high safety rating.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Quercetin 20x Plus
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Capsule(s)
Serving Size
30
Servings
Other Combinations
Product Type
25%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
200 mg (222% DV)
Quercefit
250 mg
Nettle Leaf Extract
200 mg
Market median: 600.0mg (7 products) 39 studies (A:2, B:13)

Other Ingredients

Hypromellose Water Ascorbyl Palmitate Silica
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: Take two capsules daily, or use as directed by your healthcare professional.

Warnings & Precautions

Consult your healthcare professional before use. Do not use if tamper seal is damaged.

Individuals taking medication should discuss potential interactions with their healthcare professional.

Storage: Keep tightly closed in a cool, dry place out of reach of children.

Formulation Notes

Quercetin 20x Plus is scientifically formulated to support the respiratory system, including nasal passages. It features Quercefit, a highly absorbable Quercetin formulated with Phytosome technology, combined with nettle extract and antioxidant compounds to target immune-system-related pathways connected to respiratory symptoms.

Formulated to exclude: Wheat, gluten, yeast, soy, animal and dairy products, fish, shellfish, peanuts, tree nuts, egg, sesame, ingredients derived from genetically modified organisms (GMOs), artificial colors, and artificial sweeteners.

Quercetin Phytosome-Antioxidant Complex

Vegetarian caps

Additional Information

Storage: Keep tightly closed in a cool, dry place out of reach of children.

ePV (ePedigree Verification)

GMP Compliant Third-Party Verified

Scan To Learn More! This package is completely recyclable

Metadata

Product Details

UPC / SKU7 22537 51269 5
DSLD Entry Date2025-09-25
Product TypeOther Combinations
FormCapsule
BrandXYMOGEN
DSLD ID335557
Data Updated2026-04-11
Research

Research Evidence

184
Research Sources
55
Avg Quality
91
Systematic Review
75
Meta Analysis
7
Rct
7
Clinical Trial
2
Cochrane Review
1
Openfda Safety
B Treatment of gouty arthritis with traditional Chinese medicine decoction: Meta-analysis, network pharmacology analysis, and molecular docking
Meta Analysis Medicine 2024 PubMed DOI
B Effects of quercetin supplementation on lipid profile: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2017 PubMed
B Dietary polyphenols and the risk of metabolic syndrome: a systematic review and meta-analysis
Meta Analysis BMC endocrine disorders 2024 PubMed DOI
B Quercetin and endurance exercise capacity: a systematic review and meta-analysis
Meta Analysis Medicine and science in sports and exercise 2011 PubMed DOI
B Dietary flavonoid intake and smoking-related cancer risk: a meta-analysis
Meta Analysis PloS one 2013 PubMed DOI
B Clinical efficacy evaluation and potential mechanism prediction on Guizhi-Shaoyao-Zhimu decoction in the treatment of gouty arthritis based on meta-analysis, network pharmacology analysis, and molecular docking
Meta Analysis Medicine 2023 PubMed DOI
B A Systematic Review: Quercetin-Secondary Metabolite of the Flavonol Class, with Multiple Health Benefits and Low Bioavailability
Systematic Review International journal of molecular sciences 2024 PubMed DOI
B Dietary flavonoid for preventing colorectal neoplasms.
Cochrane Review The Cochrane database of systematic reviews PubMed DOI
B Flavonoids for treating venous leg ulcers.
Cochrane Review The Cochrane database of systematic reviews PubMed DOI
B The effects of quercetin supplementation on lipid profiles and inflammatory markers among patients with metabolic syndrome and related disorders: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2020 PubMed DOI
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.