BioStacks
Pure Encapsulations

Quercetin 500 mg

2 Capsules · 30 servings

iHerbAmazon
Track this supplement · Get started free

What it does

Quercetin

Form not confirmedGrade —

May slightly lower blood pressure in some adults; findings do not establish cardiovascular protection or every preparation’s benefit.

Longevity
Ask AI about this product

Ingredients (1)

Other ingredients

No other ingredients listed

Lab testing

How to take it

With a meal containing fat

On the label

As a dietary supplement, take 2 capsules, 1-2 times daily, between meals.

The label says to take it on an empty stomach, but what's in this absorbs poorly without dietary fat. Take it with a meal that has some.

Price check

$27.80

$0.93 / serving

$20$50

Near the median of 71 quercetin supplements

Similar products

Quercetin 1000 mg

Best Naturals

Quercetin 1000 mg

🧬 for Longevity

85
Quercetin 500 mg

NOW

Quercetin 500 mg

🧬 for Longevity

85
Quercetin 1000 mg

Nutricost

Quercetin 1000 mg

🧬 for Longevity

85
Maximum-Strength Quercetin 800 mg

Swanson

Maximum-Strength Quercetin 800 mg

🧬 for Longevity

82
Quercetin 500 mg

GNC

Quercetin 500 mg

🧬 for Longevity

77

Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

Not medical advice. Consult your healthcare professional.

BioStacks

Know exactly what's in your supplements.

Navigate

  • Home
  • Manifesto
  • App Store
  • Google Play

Resources

  • Contact & Support
  • Pricing
  • Terms of Service
  • Privacy Policy
  • Refund Policy

Explore

  • Health Areas
  • Best Supplements
  • Nutrients
  • All Supplements

Popular Picks

  • Best Magnesium for Sleep
  • Best Collagen for Skin
  • Best Creatine for Muscle
  • Best Vitamin D for Bone Health
  • Best Probiotics for Digestion
  • Best CoQ10 for Heart

Free Tools

  • Interaction Checker
  • Dose Checker
  • Form Comparison

Field Guides

  • Magnesium for sleep
  • Reading labels
  • Interaction checker
  • Dose checker
  • Harmful ingredients
  • Proprietary blends
  • Stack building
  • Scan without barcode
  • All guides →
© 2026 BioStacks. All rights reserved. Not medical advice.