Vital Nutrients Quercetin Respiratory & Sinus Support, 250 mg, 200 Vegan Capsules supplement bottle
Vital Nutrients

Quercetin Respiratory & Sinus Support, 250 mg, 200 Vegan Capsules

What We Researched
1 active ingredient analyzed · 5 inactive ingredients decoded · 2 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
87
Product Score Good
81
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Quercetin Dihydrate 95% 500 mg *
Bioavailability Fair

Absorption Rating

  • Quercetin Dihydrate 95% Fair
Other Ingredients Excellent

Fillers & Additives

  • Cellulose
  • Vegetarian Capsule (Cellulose)
  • Calcium Carbonate
  • Silica
  • Ascorbyl Palmitate
Efficacy Excellent

Dosage Analysis

  • Quercetin Dihydrate 95% 500 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Quercetin Dihydrate 95% 500 mg *

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Cellulose Safe

Provides bulk and structure in tablets and capsules.

Vegetarian Capsule (Cellulose) Safe

It provides a vegetarian-friendly way to deliver the supplement.

Calcium Carbonate Safe

Acts as a filler and provides supplemental calcium.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Ascorbyl Palmitate Safe

Prevents oxidation and extends shelf life of oil-based supplements.

Price Comparison

Vitacost $54.90 $0.55 / serving
Best Price

Price History

Tracked across major retailers. Updated periodically.

$57$56$55$54$53 Mar 12 $54.90
Vitacost

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Vital Nutrients

Founded 2001 · Middletown, CT, United States · 160 products · vitalnutrients.co

Certifications

2 certifications
Nsf Gmp Verified Source
Fda Gmp Inspections Verified Source

Transparency

4 claims
Third Party Testing Claim — Verified Source
Coa Availability — Claimed
In House Testing — Verified Source

Violation History

1 incident
Fda Warning Violations of cGMP regulations, including failure to conduct testing to confirm finished products met specifications for strength of each ingredient, failure to establish component specifications for raw materials, and failure to prepare and follow a written master manufacturing record.2011-02-18Source
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Frequently Asked Questions
Is Vital Nutrients Quercetin Respiratory & Sinus Support, 250 mg a good supplement?

Vital Nutrients Quercetin Respiratory & Sinus Support, 250 mg, 200 Vegan Capsules received a product quality score of 87/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 1 active ingredients with 100 servings per container. All 5 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Vital Nutrients, holds a brand trust score of 81/100 with 2 verified certifications including Nsf Gmp, Fda Gmp Inspections.

What are the ingredients in Vital Nutrients Quercetin Respiratory & Sinus Support, 250 mg?

Vital Nutrients Quercetin Respiratory & Sinus Support, 250 mg contains 1 active ingredients: Quercetin Dihydrate 95% (500 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Vital Nutrients Quercetin Respiratory & Sinus Support, 250 mg safe to take?

Vital Nutrients Quercetin Respiratory & Sinus Support, 250 mg, 200 Vegan Capsules has been analyzed for ingredient safety across all its components. All 5 inactive ingredients — including capsule materials, fillers, and binders — are rated safe based on regulatory data and published safety research. This is a clean formulation with no controversial additives. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Vital Nutrients a trustworthy supplement brand?

Vital Nutrients receives a brand trust score of 81/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2001 and headquartered in Middletown, CT, United States, the company offers 160 products in their lineup. They hold 2 verified certifications including Nsf Gmp, Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Vital Nutrients has 1 historical regulatory incident on record, which are factored into the trust score.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.