Top 9 Best Quercetin Supplements (2026)

1. #1

   Best Overall
   1

   Healthy Origins Quercetin Phytosome (Quercefit)

   Healthy Origins

   8.4/10SAC Product Score™ⓘ

   SAC Product Score™ — how it breaks downⓘ

   • Form & Bioavailability35%9.0
   • Third-Party Testing & Purity20%8.0
   • Dose vs Clinical Range20%8.5
   • Tolerability & Safety10%8.5
   • Value15%7.5

   The only product here built on Quercefit — the exact licensed Indena raw material used in the published human quercetin trials — at a real 500 mg phytosome dose and a sane per-serving cost.

   ~$40

   ~$0.33 / capsule

   Form

   Quercefit phytosome (lecithin-bound), veggie capsule

   Dose

   500 mg Quercefit phytosome per capsule

   Count

   120 veggie capsules

   Standardization

   Licensed Quercefit (Indena), the clinically-studied material

   Testing

   Non-GMO, vegan, gluten-free; branded ingredient with published PK

   Cost per dose

   ~$0.33 per capsule

   Pros

   • ＋Uses the actual raw material studied in human quercetin RCTs, not a generic 'phytosome'
   • ＋Full 500 mg phytosome dose at roughly a third the cost per gram of Thorne
   • ＋120-count bottle is a 2-4 month supply depending on protocol
   • ＋Vegan, non-GMO, gluten-free with a named, traceable ingredient

   Cons

   • −The headline '50X absorption' figure comes from manufacturer pharmacokinetics, not clinical immune outcomes
   • −Even with elite absorption, human immune/allergy benefit remains modest and mostly studied in COVID-adjunct and exercise settings

   Our take — This is the rare supplement where the premium format is actually backed by the same branded ingredient used in the human literature, and it's priced sensibly for a 500 mg dose. It wins not because it 'cures' anything — it doesn't — but because if you're going to take quercetin at all, absorbed-and-studied beats cheap-and-inert. Manage expectations: better blood levels, still-modest proven benefit.

   Check Healthy on Amazon →Read the full review →
2. #2

   Cleanest Label
   2

   Thorne Quercetin Phytosome

   Thorne

   8/10SAC Product Score™ⓘ

   SAC Product Score™ — how it breaks downⓘ

   • Form & Bioavailability35%8.8
   • Third-Party Testing & Purity20%9.5
   • Dose vs Clinical Range20%6.5
   • Tolerability & Safety10%9.0
   • Value15%5.5

   The clinician-and-pro-sports favorite: a sunflower-lecithin phytosome with roughly 20x absorption over plain quercetin and Thorne's obsessive testing pedigree — you just pay for it.

   ~$29

   ~$0.48 / capsule

   Form

   Phytosome (Sophora japonica + sunflower phospholipid), capsule

   Dose

   250 mg quercetin phytosome per capsule

   Count

   60 capsules

   Standardization

   Phytosome complex weight (not 250 mg free quercetin)

   Testing

   Manufactured in NSF-certified/Thorne facility; gluten/dairy/soy-free

   Cost per dose

   ~$0.48 per capsule (label suggests 1 cap 2-3x daily)

   Pros

   • ＋Best-in-class manufacturing and testing pedigree, trusted by clinicians and pro sports
   • ＋Phytosome delivery cited at ~20x the absorption of plain quercetin
   • ＋Clean, allergen-free label with no fillers or absorption gimmicks
   • ＋Excellent tolerability profile

   Cons

   • −Highest cost per gram in the group and only 60 capsules
   • −250 mg is phytosome-complex weight, not 250 mg of free quercetin, and label dosing of 2-3x daily burns the bottle fast

   Our take — If you want the most trustworthy label on the shelf and cost is no object, Thorne is the pick. It loses the top spot only because the dose runs low and the price-per-gram is steep, and because Healthy Origins delivers the specific ingredient with actual human trials. A superb product for absorption purists who'll pay for provenance.

   Check Thorne on Amazon →Read the full review →
3. #3

   Best Value
   3

   NOW Foods Quercetin with Bromelain

   NOW Foods

   7.3/10SAC Product Score™ⓘ

   SAC Product Score™ — how it breaks downⓘ

   • Form & Bioavailability35%6.0
   • Third-Party Testing & Purity20%7.5
   • Dose vs Clinical Range20%8.0
   • Tolerability & Safety10%8.0
   • Value15%8.5

   The default mainstream pick: the classic quercetin-plus-bromelain allergy combo at a clinical-range 800 mg dose, 120 servings deep, from a GMP-audited brand you can find anywhere.

   ~$23

   ~$0.19 / 2-cap serving

   Form

   Plain quercetin + bromelain, veg capsule

   Dose

   800 mg quercetin + 165 mg bromelain per 2-cap serving

   Count

   240 veg capsules (120 servings)

   Standardization

   Standard (non-phytosome) quercetin

   Testing

   UL/NPA GMP audited, Non-GMO, vegan

   Cost per dose

   ~$0.19 per 2-capsule serving

   Pros

   • ＋Dose sits squarely in the human clinical range (800 mg)
   • ＋Enormous 120-serving value from a reputable, widely audited brand
   • ＋Bromelain is the traditional allergy/sinus pairing
   • ＋Cheapest cost per serving of any pick here

   Cons

   • −Plain quercetin is poorly absorbed, so blood levels lag the phytosomes despite the big number
   • −Bromelain 'synergy' rests on a plausible but thin human evidence base

   Our take — For most people asking 'which quercetin should I just buy,' this is the sensible answer: real dose, real brand, unbeatable per-serving cost. It ranks below the phytosomes purely on absorption, which is the axis that matters most. A smart value buy as long as you understand you're trading uptake for price and quantity.

   Check NOW on Amazon →Read the full review →
4. #4

   Best Cost-Per-Gram
   4

   Nutricost Quercetin with Bromelain

   Nutricost

   6.9/10SAC Product Score™ⓘ

   SAC Product Score™ — how it breaks downⓘ

   • Form & Bioavailability35%5.5
   • Third-Party Testing & Purity20%6.5
   • Dose vs Clinical Range20%8.0
   • Tolerability & Safety10%8.0
   • Value15%8.5

   The budget workhorse that still gets third-party tested: 880 mg of quercetin plus bromelain per serving for less than most competitors, with a COA behind it.

   ~$17

   ~$0.28 / 2-cap serving

   Form

   Plain quercetin + bromelain, veg capsule

   Dose

   880 mg quercetin + 165 mg bromelain per 2-cap serving

   Count

   120 capsules (60 servings)

   Standardization

   Standard (non-phytosome) quercetin

   Testing

   Third-party tested, GMP/FDA-registered facility, non-GMO, gluten-free

   Cost per dose

   ~$0.28 per 2-capsule serving

   Pros

   • ＋Highest label quercetin dose in the plain-combo category (880 mg)
   • ＋Third-party tested despite an aggressively budget price
   • ＋Bromelain co-factor included at no premium
   • ＋Excellent cost per gram

   Cons

   • −Same poor-absorption ceiling as all plain quercetin — the high number partly compensates for low uptake
   • −Half the servings of NOW at a higher per-serving cost

   Our take — Nutricost is the pick if you want the highest plain-quercetin dose per dollar with a lab test attached. It edges out on dose but loses value to NOW's massive count and the phytosomes on absorption. A perfectly respectable budget option, so long as you're not paying for milligrams you won't absorb.

   Check Nutricost on Amazon →Read the full review →
5. #5

   Highest Purity Combo
   5

   Double Wood Quercetin with Bromelain

   Double Wood

   6.6/10SAC Product Score™ⓘ

   SAC Product Score™ — how it breaks downⓘ

   • Form & Bioavailability35%5.3
   • Third-Party Testing & Purity20%6.5
   • Dose vs Clinical Range20%8.5
   • Tolerability & Safety10%7.5
   • Value15%6.5

   The heaviest hitter in the bromelain camp: a full 1,000 mg of 96%-purity quercetin plus the largest bromelain pairing here (200 mg), from a transparent single-brand seller that publishes COAs.

   ~$25

   ~$0.42 / 2-cap serving

   Form

   96% purified quercetin + bromelain, capsule

   Dose

   1,000 mg quercetin + 200 mg bromelain per 2-cap serving

   Count

   120 capsules (60 servings)

   Standardization

   Stated 96% purity (above typical ~70-90% budget extracts)

   Testing

   Third-party tested with published COAs, vegan-safe, gluten-free

   Cost per dose

   ~$0.42 per 2-capsule serving

   Pros

   • ＋Highest per-serving quercetin (1,000 mg) and bromelain (200 mg) in the set
   • ＋States 96% purity, above the budget-extract norm
   • ＋Transparent brand that publishes certificates of analysis
   • ＋Solidly in the upper clinical dose range

   Cons

   • −Still an unenhanced quercetin, so absorption stays low regardless of the big label figure
   • −The 1,000 mg is a 2-capsule serving, not per capsule — easy to misread

   Our take — Double Wood is for the dose-and-transparency buyer who wants the biggest plain-quercetin plus bromelain serving with COAs to back it. Purity and dose are strong, but purity is not bioavailability, which is why it sits mid-pack. A dependable, honest budget-premium combo that simply can't out-absorb a phytosome.

   Check Double on Amazon →Read the full review →
6. #6

   Best Softgel
   6

   Sports Research Quercetin with Coconut MCT & Sunflower Lecithin

   Sports Research

   6.3/10SAC Product Score™ⓘ

   SAC Product Score™ — how it breaks downⓘ

   • Form & Bioavailability35%6.5
   • Third-Party Testing & Purity20%6.5
   • Dose vs Clinical Range20%6.0
   • Tolerability & Safety10%8.0
   • Value15%5.0

   A middle path between plain powder and true phytosome: 500 mg of quercetin suspended in MCT oil and sunflower lecithin in an easy-swallow softgel, Non-GMO Project Verified.

   ~$17

   ~$0.57 / softgel

   Form

   Quercetin in MCT oil + sunflower lecithin, liquid softgel

   Dose

   500 mg quercetin per softgel

   Count

   30 liquid softgels

   Standardization

   Lipid-carrier formulation (not a standardized phytosome)

   Testing

   Non-GMO Project Verified, gluten-free

   Cost per dose

   ~$0.57 per softgel

   Pros

   • ＋Lipid (MCT + lecithin) carrier plausibly aids absorption of fat-soluble quercetin
   • ＋Convenient single-softgel 500 mg dose, easy to swallow
   • ＋Reputable consumer brand with Non-GMO Project verification
   • ＋No megadose padding — a clean, moderate serving

   Cons

   • −The 'better absorption' angle is a formulation rationale, not phytosome-grade clinical data
   • −Only 30 softgels makes the real cost-per-day the highest here

   Our take — The softgel format and lipid carrier put this a notch above plain isolates on absorption, and it's genuinely pleasant to take. But a 30-count bottle at this price is poor value, and the MCT rationale doesn't reach phytosome evidence. A fine choice if you value convenience and Non-GMO verification over cost or maximum uptake.

   Check Sports on Amazon →Read the full review →
7. #7

   Classic 3-in-1 Blend
   7

   Solaray QBC Plex (Quercetin, Bromelain & Vitamin C)

   Solaray

   6/10SAC Product Score™ⓘ

   SAC Product Score™ — how it breaks downⓘ

   • Form & Bioavailability35%5.8
   • Third-Party Testing & Purity20%6.0
   • Dose vs Clinical Range20%6.0
   • Tolerability & Safety10%7.5
   • Value15%5.5

   The old-school allergy-season formula: quercetin, bromelain, and vitamin C in one capsule, a combination that's been on shelves for decades on a coherent antioxidant rationale.

   ~$16

   ~$0.27 / capsule

   Form

   Quercetin + bromelain + vitamin C blend, veg capsule

   Dose

   ~500 mg quercetin + bromelain + vitamin C per serving

   Count

   60 veg capsules

   Standardization

   Standard quercetin in a three-active blend

   Testing

   Vegan, lab verified, 60-day guarantee

   Cost per dose

   ~$0.27 per capsule

   Pros

   • ＋Three complementary actives (quercetin + bromelain + vitamin C) in one pill
   • ＋Long-standing, well-known 'QBC' formula with a loyal following
   • ＋Vitamin C adds a genuine antioxidant co-factor
   • ＋Reasonable per-capsule cost and a satisfaction guarantee

   Cons

   • −Modest ~500 mg quercetin dose split among three ingredients
   • −The vitamin-C-boosts-quercetin-absorption idea is mechanistic/animal-based, not established in humans

   Our take — QBC Plex is a convenient, familiar all-in-one for allergy season, and the vitamin C is a nice-to-have. It ranks here because the quercetin dose is modest, it's still plain (poorly absorbed) quercetin, and the vitamin C absorption claim is not proven in people. Fine as a low-commitment blend, not a high-potency choice.

   Check Solaray on Amazon →Read the full review →
8. #8

   Micro-Dose Add-On
   8

   Life Extension Bio-Quercetin

   Life Extension

   5.7/10SAC Product Score™ⓘ

   SAC Product Score™ — how it breaks downⓘ

   • Form & Bioavailability35%7.5
   • Third-Party Testing & Purity20%6.0
   • Dose vs Clinical Range20%2.0
   • Tolerability & Safety10%8.5
   • Value15%4.0

   A phytosome-format quercetin with a big absorption claim — but at only ~15 mg per capsule, it's a co-factor sprinkle, not a standalone immune dose.

   ~$8

   ~$0.27 / capsule

   Form

   Phytosome (galactomannan/quercetin complex), veggie capsule

   Dose

   ~15 mg quercetin phytosome (62x absorption claim)

   Count

   30 capsules

   Standardization

   Galactomannan-quercetin phytosome complex

   Testing

   Non-GMO, gluten-free, vegetarian

   Cost per dose

   ~$0.27 per capsule

   Pros

   • ＋Highly-absorbable phytosome delivery format
   • ＋Cheapest sticker price in the group
   • ＋Excellent tolerability at such a low dose
   • ＋Sensible as a companion to Life Extension's vitamin C

   Cons

   • −~15 mg absolute dose is a fraction of the 500-1,000 mg used in human trials, even after the absorption claim
   • −Only 30 capsules, and the value collapses once you account for how little quercetin you actually get

   Our take — The phytosome format is legitimately good, but 15 mg is a rounding error next to the clinical range — the entire product leans on a 62x marketing figure to justify the dose. It's a fine little add-on if you already take a stack and want a trace of well-absorbed quercetin, but it can't stand alone as an immune supplement. Format smart, dose too small.

   Check Life on Amazon →Read the full review →
9. #9

   Purity ≠ Absorption
   9

   Toniiq Ultra High Purity Quercetin

   Toniiq

   5.5/10SAC Product Score™ⓘ

   SAC Product Score™ — how it breaks downⓘ

   • Form & Bioavailability35%3.5
   • Third-Party Testing & Purity20%6.0
   • Dose vs Clinical Range20%7.5
   • Tolerability & Safety10%7.0
   • Value15%6.0

   A standardized 95%+ pure quercetin isolate at 1,000 mg — the cleanest raw material here, and also the single worst-absorbed, because it has nothing to help it get into your blood.

   ~$19

   ~$0.32 / 2-cap serving

   Form

   Standardized plain quercetin isolate (95%+), capsule

   Dose

   1,000 mg quercetin per 2-cap serving

   Count

   120 capsules (60 servings)

   Standardization

   95%+ purity, no bromelain/vitamin C/phytosome

   Testing

   Third-party tested, non-GMO

   Cost per dose

   ~$0.32 per 2-capsule serving

   Pros

   • ＋High stated purity (95%+) with third-party testing
   • ＋Full 1,000 mg dose in the upper clinical range
   • ＋No fillers or additives — a true isolate
   • ＋Reasonable price per gram

   Cons

   • −No absorption aid whatsoever — the poorest bioavailability in the entire group
   • −Purity is marketed as if it were potency; a pure compound you don't absorb is still wasted

   Our take — Toniiq nails purity and dose, which is exactly why it's instructive that it finishes last: on the axis that matters most, plain isolate with no delivery help absorbs the worst. It's a clean product built around the wrong headline metric. Choose it only if you specifically want additive-free raw quercetin and understand you're accepting minimal uptake.

   Check Toniiq on Amazon →Read the full review →

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