BioStacks
Natura Health Products

Quercetin Plus

1 Capsule · 90 servings · $0.63/serving

iHerbAmazon

Best for

Immune

Ingredients (4)

Vitamin C

100%

Dose

50 mg

Target

50–250 mg

Form

Not listed

Quercetin

70%

Dose

350 mg

Target

500–1000 mg

Form

—

Bromelain

24%

Dose

120 gdu

Target

500–2400 gdu

Form

—

Organic Nettle Leaf

17%

Dose

50 mg

Target

300–600 mg

Form

Standard

Other Ingredients (5)

Magnesium StearateLubricant

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

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

HypromelloseCapsule

Plant-derived capsule material from cellulose

Microcrystalline CelluloseBinder

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

Purified WaterSolvent

Water meeting USP specifications used as solvent/vehicle in gummies and liquids

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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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