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Quercetin with Vitamin C

product on market Capsule Terry Naturally 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

Vitamin C and quercetin are researched for their antioxidant properties and roles in supporting immune function. While vitamin C has strong evidence for health maintenance, research on quercetin is more limited. Together, these ingredients may work synergistically to manage oxidative stress.

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

Label

Product Label

Label for Quercetin with 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.

Warnings & Precautions

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

Formulation Notes

Synergy for optimal immune support Healthy histamine response Supports healthy levels already within normal range Sinus, lung, and respiratory function Immune function and cellular health

Quercetin with Vitamin C combines quercetin with GammaSorb, a unique delivery system that has been shown to increase the absorption of hard to absorb (fat soluble) dietary ingredients, in some cases by as much as 8 times.

Vegan

Non GMO

Ultra Absorption

Gamma Sorb

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

Additional Information

Money-back guarantee

For your good health Terry

Metadata

Product Details

UPC / SKU3 67703 30066 1
DSLD Entry Date2025-01-23
Product TypeOther Combinations
FormCapsule
DSLD ID325763
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
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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.