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What it does
A combination of 2 label ingredients.
Quercetin
Form not confirmedGrade —
Label lists Quercetin (250 mg). Benefit information is limited.
Vitamin C
ascorbic acidBudget
Supports normal collagen production and immune function, and helps the body absorb iron from plant foods.
Ingredients (2)
Other ingredients
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
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
Capsule ShellCapsule
Generic capsule shell where the label does not specify the material. Common materials are hypromellose (HPMC) for vegetarian capsules and gelatin for traditional capsules — both are GRAS-listed and safe. Fish gelatin and pullulan variants also exist.
Lab testing
How to take it
With a meal containing fat
On the label
1 capsule per day or as directed by a health professional.
Price check
$13.97
$0.23 / serving
Cheaper than 95% of 71 quercetin supplements
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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.