Emerald Labs Quercetin Phytosome, 250 mg, 60 Vegetable Caps supplement bottle
Emerald Labs

Quercetin Phytosome, 250 mg, 60 Vegetable Caps

What We Researched
1 active ingredient analyzed · 1 inactive ingredient decoded · 2 retailers compared · Last updated: Mar 2026
75
Product Score Fair
62
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Quercefit® Quercetin Phytosome(Sophora japonica L. extract (flower) / Sunflower lecithin) 250 mg *
Bioavailability Excellent

Absorption Rating

  • Quercefit® Quercetin Phytosome(Sophora japonica L. extract (flower) / Sunflower lecithin) Good
Other Ingredients Excellent

Fillers & Additives

  • Vegetable Capsule
Efficacy Very Poor

Dosage Analysis

  • Quercefit® Quercetin Phytosome(Sophora japonica L. extract (flower) / Sunflower lecithin) 250 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Quercefit® Quercetin Phytosome(Sophora japonica L. extract (flower) / Sunflower lecithin) 250 mg *

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Vegetable Capsule Safe

It is used as a vegetarian alternative to gelatin capsules.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$36$35$34$33$32 Mar 12 $34.16
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
Emerald Labs

Founded 2001 · Carson, CA, USA · 12 products · emeraldlabs.com/

Transparency

3 claims
Third Party Testing Claim — Claimed Source
In House Testing — Verified Source

Violation History

3 incidents
Prop 65 Lead2025-08-15Source
Prop 65 Lead and lead compounds2019-03-26Source
Lawsuit Failure to provide clear and reasonable warnings about exposure to lead and lead compounds in moringa products.2019Source
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Frequently Asked Questions
Is Emerald Labs Quercetin Phytosome, 250 mg a good supplement?

Emerald Labs Quercetin Phytosome, 250 mg, 60 Vegetable Caps received a product quality score of 75/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 1 active ingredients with 60 servings per container. All 1 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Emerald Labs, holds a brand trust score of 62/100.

What are the ingredients in Emerald Labs Quercetin Phytosome, 250 mg?

Emerald Labs Quercetin Phytosome, 250 mg contains 1 active ingredients: Quercefit® Quercetin Phytosome(Sophora japonica L. extract (flower) / Sunflower lecithin) (250 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Emerald Labs Quercetin Phytosome, 250 mg safe to take?

Emerald Labs Quercetin Phytosome, 250 mg, 60 Vegetable Caps has been analyzed for ingredient safety across all its components. All 1 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 Emerald Labs a trustworthy supplement brand?

Emerald Labs receives a brand trust score of 62/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2001 and headquartered in Carson, CA, USA, the company offers 12 products in their lineup. Note: Emerald Labs has 3 historical regulatory incidents 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.