Home/ Supplements/ Vitamin C/ Quercetin plus Vitamin C

Quercetin plus Vitamin C

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

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 50% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Quercetin and Vitamin C are researched for their antioxidant properties and roles in supporting immune function. While Vitamin C has strong evidence for general health maintenance, research on quercetin's efficacy in humans is more limited. These ingredients are generally considered safe when taken within recommended dosages.

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

Label

Product Label

Label for Quercetin plus Vitamin C
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Capsule(s)
Serving Size
60
Servings
Other Combinations
Product Type
50%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
250 mg (278% DV)
50 mg
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)

Other Ingredients

Gamma Cyclodextrin Hydroxypropyl Methylcellulose Silica Magnesium Stearate
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Recommendations: 1 capsule daily, or as recommended by your healthcare practitioner.

Warnings & Precautions

If pregnant or nursing, consult a healthcare practitioner before use.

Formulation Notes

Quercetin + Vitamin C: Powerful immune support For optimal cellular and immune support, we've combined quercetin with GammaSorb, a unique delivery system shown to increase the absorption of certain fat-soluble ingredients.

Supports cellular and immune health Helps maintain healthy sinus, lung, and respiratory function Supports a healthy histamine response Supports healthy levels already within normal range

Provides bioflavonoid and antioxidant support

Ultra absorption Immune support formula

Vegan

Non-GMO

GammaSorb

No sugar, salt, yeast, wheat, gluten, soy, dairy products, artificial coloring, artificial flavoring, or artificial preservatives.

Metadata

Product Details

UPC / SKU3 67703 70066 9
DSLD Entry Date2024-04-23
Product TypeOther Combinations
FormCapsule
DSLD ID309447
Data Updated2026-04-11
Research

Research Evidence

371
Research Sources
54
Avg Quality
148
Meta Analysis
82
Systematic Review
71
Rct
62
Clinical Trial
2
Regulatory Source
1
Cochrane Review
1
Narrative Review
1
Other
1
Openfda Safety
A Vitamin C supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017 PubMed DOI
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024 PubMed DOI
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021 PubMed DOI
View all evidence for Vitamin C →
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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.