BioStacks
Natural Factors

Quercetin with Zinc & Copper

1 Capsule · 60 servings · $0.55/serving

74 / 100Good

Best for

Score Breakdown

Formulation
74
Safety
100
Final score
74/100

Ingredients (3)

Quercetin (buds)

100%

Dose

500 mg

Target

500–1000 mg

Form

Zinc

100%

Dose

15 mg

Target

15–30 mg

Form

Standard

Copper

100%

Dose

1000 mcg

Target

1000–2000 mcg

Form

Standard

Other Ingredients

No other ingredients listed

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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.