NEW
🧅 Quercetin
Cost per serving
$0.75
Pricey
other · 7 active deals
The best-value Quercetin right now is about $0.14 per dose — across 7 tracked products the median is $0.183/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.
Right now the best value across our full Quercetin catalog is at $0.14 per serving.
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.
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.
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.
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 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
Every Quercetin deal above is ranked by real cost per dose with no paid placement — see our and .
1 of 5 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.
Nutricost Quercetin 880mg at $0.14 — the lowest cost-per-dose quercetin in our catalog. See the full ranking on the Best Quercetin page.
We're tracking 7 active Quercetin deals across Amazon US and partner retailers, ranked by community votes and cost-per-dose — not paid placement.
Across 7 tracked Quercetin deals the median cost-per-dose is $0.183; the cheapest quartile comes in under $0.171 . Anything below the median is a solid deal for the same molecule.
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.
According to FDA, up to 500 mg quercetin 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.
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.
Cost per serving
$0.75
PriceyCost per serving
$0.18
Avg·−50%120 servings · ~120-day supply
Cost per serving
$0.25
Pricey60 servings · ~60-day supply
Cost per serving
$0.14
Cheap·−79%240 servings · ~240-day supply
Cost per serving
$0.17
Cheap·−76%120 servings · ~120-day supply
Cost per serving
Cost per serving
$0.17
Avg·−66%120 servings · ~120-day supply
SuperSmart USA LLC · SuperSmart · 🧅 Quercetin
CPS
Price
$45.00
Nutricost · Amazon.com · 🧅 Quercetin
CPS
Price
$21.95
Life Extension · Amazon.com · 🧅 Quercetin
CPS
Price
$15.00
Nutricost · Amazon.com · 🧅 Quercetin
CPS
Price
$33.95
Nutricost · Amazon.com · 🧅 Quercetin
CPS
Price
$19.95
BulkSupplements.com · Amazon.com · 🧅 Quercetin
CPS
Price
$22.97
Amazing Formulas · Amazon.com · 🧅 Quercetin
CPS
Price
$20.99
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.
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.
Dosage, upper-limit, deficiency, food-source and interaction facts are sourced from the NIH Office of Dietary Supplements Quercetin fact sheet. General information, not medical advice.
60 servings · ~60-day supply
$0.23
100 servings · ~100-day supply
