BioStacks
Life Extension

Optimized Quercetin 250 mg

1 Capsule · 60 servings · $0.38/serving

15 / 100Very Poor

Best for

Score Breakdown

Formulation
16
Safety
87
Final score
15/100

Ingredients (7)

Quercetin

50%

Dose

250 mg

Target

500–1000 mg

Form

Vitamin C

60%

Dose

30 mg

Target

50–250 mg

Form

Not listed

Camu-Camu extract

10%

Dose

50 mg

Target

500–3000 mg

Form

Optimized Food Blend

4%

Dose

220 mg

Target

5000–15000 mg

Form

Bitter orange bioflavonoids

Amount not found

Other Ingredients (5)

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

Microcrystalline CelluloseBinder

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

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.