Quercetin 500mg, 30 Capsules
Jarrow Formulas Quercetin 500 mg delivers quercetin, a flavonoid found naturally in fruits and vegetables, in a straightforward capsule format.
May be a fit for
- Adults seeking quercetin to support healthy seasonal immune responses
- Individuals looking to maintain antioxidant defenses with 500mg quercetin daily
- Those supporting cardiovascular wellness with a flavonoid-based quercetin supplement
Save together with Wellness Circles
Invite friends or family to a Wellness Circle. Your group can unlock savings together. See current tiers and terms before joining.
Explore Wellness CirclesA closer look.
Jarrow Formulas Quercetin 500 mg delivers quercetin, a flavonoid found naturally in fruits and vegetables, in a straightforward capsule format. Each serving provides 500 mg to support healthy immune function and may help maintain a balanced inflammatory response for those seeking daily flavonoid supplementation.
Why It's Worth Considering: Jarrow's formulation uses a concentrated dose without unnecessary fillers, making it a practical option for those looking to add quercetin to an existing wellness protocol.
50+ signals. A clearer standard.
Our curation and trust scoring bring together manufacturing, testing, research, practitioner insight and reviews from across the web.
Our score is an editorial assessment, not a product certification or a guarantee of results.
Product details
Who it may suit
May be a fit for
- Adults seeking quercetin to support healthy seasonal immune responses
- Individuals looking to maintain antioxidant defenses with 500mg quercetin daily
- Those supporting cardiovascular wellness with a flavonoid-based quercetin supplement
- Active adults using quercetin to help maintain normal post-exercise inflammatory balance
Considerations
- Taking cyclosporine (quercetin increases blood levels)
- Taking fluoroquinolone antibiotics (quercetin may interfere)
- Kidney disease (high doses may contribute to oxalate stones)
Explore complementary products
Nordic Naturals - Vitamin C Gummies, 60 Gummies
Pure Encapsulations - Zinc 30, 180 CapsulesReal reviews. A wider perspective.
Customer reviews, social conversations and expert insights, with every source in view.
- Marketplaces & brand websites
- Amazon, iHerb and direct brand reviews
- Social & community
- Reddit, X, Instagram and TikTok
- Video & creators
- YouTube and creator perspectives
Coverage varies by product and brand.
4243 product and brand ratings and mentions across 8 sources.
These are broader practitioner and research perspectives. They may discuss the brand or other products, rather than this exact formula.
Explore the source sentiment summary
Quercetin is broadly praised for antioxidant and anti-inflammatory benefits, though MAOI interactions and drug safety raise notable caution.
This summary includes broader brand discussion. Individual experiences are not evidence of product effectiveness.
A few useful answers.
Research & further reading
More category questions
Does quercetin help with allergies?
Yes. Quercetin stabilizes mast cells, preventing them from releasing histamine in response to allergens. Clinical studies show 500-1000mg/day reduces allergy symptoms (sneezing, itching, congestion) comparably to some antihistamine drugs. Start 2-4 weeks before allergy season for preventive benefit.
How much quercetin should I take?
For allergies: 500mg 2x/day starting 2-4 weeks before allergy season. For immune support: 500-1000mg/day. For longevity/senolytic effect: 500mg with dasatinib (under practitioner guidance). Standard quercetin has low bioavailability — choose quercetin phytosome or EMIQ (enzymatically modified isoquercitrin) for 20x better absorption.
Is quercetin a senolytic?
Yes — quercetin is one of the most studied senolytic compounds (agents that clear senescent 'zombie' cells). In combination with dasatinib, it's been shown to reduce senescent cell burden in human trials. As a standalone supplement at 500-1000mg/day, it has milder senolytic activity but still contributes to healthy aging through reduced inflammation and oxidative stress.
Supplement information is provided for education and is not a substitute for personalized medical advice. Supplements are not intended to diagnose, treat, cure or prevent disease. Read the current product label before use.