BioStacks
GNC

Quercetin 500 mg

1 Caplet · 60 servings · $0.42/serving

iHerbAmazon

Best for

Longevity

Ingredients (1)

Quercetin

100%

Dose

500 mg

Target

500–1000 mg

Form

—

Other Ingredients (9)

MonoglyceridesEmulsifier

Glycerol monoesters of fatty acids used as emulsifiers and processing lubricants

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Oleic AcidEmollient

A monounsaturated fatty acid used as an emollient and penetration aid

Polyethylene Glycol (Coating)Coating

A polyether polymer used as a tablet coating and plasticizer

Carnauba WaxCoating

Hard plant wax from the carnauba palm used to glaze gummies and tablets

EthylcelluloseCoating

A cellulose-derived polymer used for film coating and binding.

Microcrystalline CelluloseBinder

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

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

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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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