Absorption Enhancer
Quercetin (as Zinc Ionophore)
Also known as: Quercetin, Zinc ionophore
Quercetin functions as a zinc ionophore, helping transport zinc into cells. Synergistic pairing for immune and metabolic benefits.
Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.
Every Quercetin (as Zinc Ionophore) product we have scored
| # | Product | Score | Per serving |
|---|---|---|---|
| 1 | Thorne Quercetin Phytosome | 92 A | $0.77 |
| 2 | Thorne Quercetin Complex | 90 A | $0.90 |
| 3 | Thorne Advanced Nutrients | 88 A | $2.40 |
| 4 | Thorne Pre-Workout Elite | 88 A | $1.83 |
| 5 | Thorne PolyResveratrol-SR® | 87 A | $1.97 |
| 6 | Nutricost Quercetin (1000mg) | 87 A | $0.37 |
| 7 | Pure Encapsulations PureDefense with NAC | 87 A | $1.90 |
| 8 | Pure Encapsulations Quercetin | 86 A- | $0.97 |
| 9 | Pure Encapsulations NeuroPure | 86 A- | $1.18 |
| 10 | Jarrow Formulas Quercetin | 86 A- | $0.34 |
| 11 | Pure Encapsulations A.I. Formula | 85 A- | $0.61 |
| 12 | Thorne ResveraCel | 84 A- | $2.00 |
Scored on dose accuracy, form, label transparency and third-party testing. Per-serving cost is list price divided by servings per container. No brand pays to be listed or ranked.
Common questions
How much Quercetin (as Zinc Ionophore) should I take?
The typical range is 500-1000mg quercetin with 15-30mg zinc. Safe for immune support periods
When should I take Quercetin (as Zinc Ionophore)?
Together for ionophore effect. With meals.
Which form of Quercetin (as Zinc Ionophore) is best?
Quercetin + Zinc combo — Often sold together.
Is Quercetin (as Zinc Ionophore) safe?
Commonly reported: GI upset, Headache. Serious warnings: Don't exceed zinc long-term. Quercetin caution in kidney disease
Which Quercetin (as Zinc Ionophore) supplement scores highest?
Thorne Quercetin Phytosome, at 92/100. Scored on dose accuracy, form, label transparency and third-party testing — no brand pays to be listed or ranked.
Primary uses
- Zinc transport
- Immune synergy
- Cellular zinc delivery
How it works
- Transports zinc across cell membranes
- Synergistic immune effects
- Antiviral mechanisms
- Enhances intracellular zinc
Dosage
- Typical range
- 500-1000mg quercetin with 15-30mg zinc
- Timing
- Together for ionophore effect
- With food
- With meals
- Duration
- Safe for immune support periods
- Special populations
- Immune support, viral illness
Forms
- Quercetin + Zinc combo
Safety
Common side effects
- GI upset
- Headache
Contraindications
- Kidney disease (quercetin)
Products containing Quercetin (as Zinc Ionophore)
Top-scoring supplements in our catalog that list Quercetin (as Zinc Ionophore) on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.
Evidence notes
Ionophore function established in research
Grade B: Some human trials support key claims; further confirmation needed.
Cited research for Quercetin (as Zinc Ionophore)
Clinical studies referenced across Formulate guides that mention quercetin (as zinc ionophore). Each links to the full study page with PubMed source + the guides that cite it.
Related in Absorption Enhancer
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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.