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Quercetin
other · 49 active deals
How much does Quercetin cost?
The best-value Quercetin right now is about $0.07 per dose — across the 48 we can price per dose the median is $0.218/dose, so shopping on cost-per-dose can cut your cost several-fold. Every Quercetin deal here is ranked by cost per dose — what you actually pay per serving, not the sticker price — because forms and absorption differ, so the cheapest bottle isn’t always the cheapest dose.
Prices checked · live from the Amazon US catalog.
Right now the best value across our full Quercetin catalog is at $0.07 per serving.
Median $0.218/servingCheapest quartile under $0.162across 48 tracked Quercetin deals
Goals:
What Quercetin does
Quercetin is a flavonol (a polyphenolic compound) present in many fruits, vegetables, spices, and beverages. Research suggests it might have antioxidant, antiviral, anti-inflammatory, and immunomodulatory effects, and it might also inhibit platelet aggregation. It has been studied for whether it reduces the risk or severity of upper respiratory tract infections, but results have been mixed in the few clinical trials examining 500 and 1,000 mg/day (sometimes combined with vitamin C or niacin). Data are very limited on quercetin supplementation in patients with COVID-19, and overall, data are insufficient to support recommendations for or against using any dietary supplement to prevent or treat COVID-19. — per NIH Office of Dietary Supplements; not medical advice.
Forms & absorption
Quercetin has very low oral bioavailability, ranging from 3% to 17%, but combining it with sunflower lecithin increases its bioavailability by as much as 20 times, according to the NIH Office of Dietary Supplements.
Food sources of Quercetin
Quercetin is naturally present in many fruits, vegetables, spices, and beverages, including citrus fruits, apples, onions, berries, broccoli, cilantro, dill, tea, and red wine, per the NIH Office of Dietary Supplements.
Can you get too much Quercetin?
According to FDA, up to 500 mg quercetin per serving is generally recognized as safe (GRAS) as an ingredient in foods and beverages. Less is known about quercetin supplements, but no serious adverse effects have been reported in clinical trials that used up to 1,000 mg/day for up to 12 weeks. — per NIH Office of Dietary Supplements; not medical advice.
Quercetin — interactions & cautions
Quercetin might affect drug-metabolizing enzymes, such as CYP3A4, which could increase the bioavailability of cyclosporine, pravastatin (used to treat high cholesterol), and fexofenadine (an antihistamine). It might also reduce blood pressure in people with hypertension, so it could potentiate the effects of antihypertensive medications. These interactions have not been adequately evaluated in clinical settings. — per NIH Office of Dietary Supplements; not medical advice.
Source: NIH Office of Dietary Supplements — Quercetin fact sheet
Global Healing Center Quercetin (2-Pack) 500mg Total
Global Healing CenterAmazon.com
$0.67/serving
$79.950°
Amazing Formulas Quercetin 500mg 120 Veggie Capsules…
Amazing NutritionAmazon.com
$0.17/serving
$19.990°
Quercetin with Zinc 500mg - 120 Vegan Capsules 60 Day Supply
BoostCeuticalsAmazon.com
$0.22/serving
$25.950°
Quercetin with Zinc Supplement - 1000mg Per Serving…
aSquared NutritionAmazon.com
$0.25/serving
$29.950°
Nutri Liposomal Quercetin Phytosome 500mg w/Bromelain…
Nature's FusionsAmazon.com
$0.60/serving
$35.990°
Amazing Formulas Quercetin 500mg Veggie Capsules Supplement…
Amazing NutritionAmazon.com
$0.14/serving
$49.900°
Luma Nutrition Quercetin with Bromelain Supplement 500mg…
Luma NutritionAmazon.com
$0.50/serving
$29.990°
Amazing Formulas Quercetin 800mg with Bromelain 165mg
Amazing NutritionAmazon.com
$0.15/serving
$17.950°
VitaMedica Bromelain & Quercetin Supplement - 500mg Bromelain…
VitaMedicaAmazon.com
$1.27/serving
$37.950°
Wellness Resources Quercetin Phytosome 250 mg with Luteolin…
Wellness ResourcesAmazon.com
$0.60/serving
$35.990°
Healthy Origins Quercetin Phytosome Quercefit 500 mg, 120 Caps
Healthy OriginsAmazon.com
$0.40/serving
$47.990°
Quercetin 500mg Capsules | Vegan Friendly Quercetin Dihydrate…
NasaBeahavaAmazon.com
$0.12/serving
$24.950°
Amazing Formulas Quercetin 500mg Veggie Capsules Supplement…
Amazing NutritionAmazon.com
$0.15/serving
$35.900°
Amazing Formulas Quercetin 500mg Veggie Capsules Supplement…
Amazing NutritionAmazon.com
$0.14/serving
$33.800°
Amazing Nutrition Quercetin 800 Mg with Bromelain 165 Mg…
Amazing NutritionAmazon.com
$0.12/serving
$29.950°
Quercetin with Bromelain 500mg Supplement Capsules 1000mg Per…
Sandhu'sAmazon.com
$0.21/serving
$25.490°
Super Quercetin 1000mg - SuperSmart | Patented QU995 - High…
SuperSmart USA LLCSuperSmart
$0.75/serving
$45.000°
Life Extension Optimized Quercetin 250 mg Supports Immune…
Life ExtensionAmazon.com
$0.25/serving
$15.000°
Jarrow Formulas Quercetin 500mg Capsules - 200 Veggie Caps…
Jarrow FormulasAmazon.com
$0.22/serving
$43.940°
Smart Nutra Labs Quercetin 1000mg- 180 Vegan Capsules
Smart Nutra LabsAmazon.com
$0.17/serving
$29.990°
BulkSupplements.com Quercetin Dihydrate Powder - Quercetin…
BulkSupplements.comAmazon.com
$0.23/serving
$22.970°
aSquared Nutrition Quercetin 500mg Supplement - 60 Capsules…
aSquared NutritionAmazon.com
$0.33/serving
$19.950°
NatureBell Quercetin 1,000mg - 240 Capsules - Ultra Strength…
NatureBellAmazon.com
$0.10/serving
$25.190°
Amazing Formulas Quercetin 500mg 120 Veggie Capsules…
Amazing FormulasAmazon.com
$0.17/serving
$20.990°
Every Quercetin deal above is ranked by real cost per dose with no paid placement — see our and .
Independent testing
2 of 34 tracked Quercetin brands here are flagged as carrying independent third-party testing — a voluntary check of a product's identity, potency and contaminants by an outside lab. It's a quality signal, not a value or efficacy claim. Confirm any brand's current status on the official registries:
Testing status is self-reported by the brand or drawn from public certification and may change — always verify on the official registry before purchase.
Quercetin deals — FAQ
- How much does Quercetin cost?
The cheapest quercetin we track works out to $0.07 , against a typical $0.22 across the 48 we can price per dose — about $2.20 a month at the cheapest. That is real from live Amazon US prices, not the sticker price. The full ranking is on the Best Quercetin page.
- What is the best-value Quercetin per dose?
DEAL SUPPLEMENT Quercetin 1,000mg at $0.07 per serving — the lowest cost-per-dose quercetin in our catalog. See the full ranking on the Best Quercetin page.
- How many Quercetin deals are live right now?
We're tracking 49 active Quercetin deals across Amazon US and partner retailers, ranked by community votes and cost-per-dose — not paid placement.
- What's a good price for Quercetin per dose?
Across the 48 Quercetin deals we can price per dose (combination products are left out — their single label dose belongs to whichever ingredient the product is built around) the median cost-per-dose is $0.218; the cheapest quartile comes in under $0.162 . Anything below the median is a solid deal for the same molecule.
- How does VitaminDB rank Quercetin deals?
Deals are submitted by the community and ranked by net votes (hot minus cold) plus cost-per-dose normalised across container sizes. We take no affiliate kickbacks for ordering; sponsored slots, when present, are clearly badged.
Related supplements
References & sources
- Dietary Supplements in the Time of COVID-19: Fact Sheet for Health Professionals — NIH Office of Dietary Supplements
- USP Verified product participants — U.S. Pharmacopeia
- NSF certified products — NSF
We link primary sources and paraphrase their findings — never copy their text, tables, or images. Cost-per-dose figures are our own first-party catalog data.