BioStacks
ProCaps

Quercetin 500

1 Capsule · 240 servings · $0.42/serving

iHerbAmazon

Best for

Longevity

Ingredients (4)

Vitamin C

50%

Dose

25 mg

Target

50–250 mg

Form

Standard

Total Quercetin

47%

Dose

235 mg

Target

500–1000 mg

Form

—

Quercetin Phospholipid Complex

42%

Dose

500 mg

Target

1200–2400 mg

Form

—

Total Phospholipids

11%

Dose

135 mg

Target

1200–2400 mg

Form

—

Other Ingredients (1)

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and 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. clinical 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.

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