BioStacks
Best for
Ingredients (7)
Vitamin C
100%Dose
500 mg
Target
50–250 mg
Form
Budget
Bioperine Piperine
60%Dose
3 mg
Target
5–20 mg
Form
—
Bio-Quercetin Phytosome
3%Dose
15 mg
Target
500–1000 mg
Form
—
Quercetin
1%Dose
5 mg
Target
500–1000 mg
Form
—
Calcium
79 mgTrace amount — not scored
Other Ingredients (8)
MaltodextrinBinder
Spikes blood sugar faster than table sugar (glycemic index 85–105). Research links it to gut bacteria changes that may promote intestinal inflammation (Nickerson et al. 2015). Used as a cheap filler — adds nothing beneficial.
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Vegetable StearateLubricant
A plant-derived salt of stearic acid (typically magnesium or calcium) used as a tablet lubricant
Croscarmellose SodiumDisintegrant
Cross-linked cellulose derivative used as a superdisintegrant
GlycerinHumectant
Sweet-tasting liquid used in soft capsules and liquids
HypromelloseCapsule
Plant-derived capsule material from cellulose
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
How to Take It
Take it anytime
What's in this absorbs poorly without a fat-containing meal — take it with one.
With a meal containing fat
On the label
Take one (1) tablet once or twice daily with or without food, or as recommended by a healthcare practitioner.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$16.57
Cheaper than 93% of 66 quercetin 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.