Quercetin Phytosome, 60 Capsules
Size: 60 capsules
May be a fit for
- Adults seeking quercetin phytosome support for seasonal respiratory comfort
- Individuals supporting healthy inflammatory response with enhanced-absorption quercetin
- Active adults using quercetin phytosome to help maintain post-exercise recovery
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.
Thorne's Quercetin Phytosome delivers quercetin, a flavonoid found naturally in plants, bound to sunflower-derived phospholipids to support absorption compared to standard quercetin powder. It's formulated to support a balanced immune response and healthy inflammatory pathways, making it relevant for health-conscious adults and those working with integrative practitioners.
Why It's Worth Considering: The phytosome delivery system complexes quercetin with phosphatidylcholine, a technology associated with meaningfully improved bioavailability over conventional quercetin supplements. Thorne's manufacturing standards align with practitioner-grade quality expectations.
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 phytosome support for seasonal respiratory comfort
- Individuals supporting healthy inflammatory response with enhanced-absorption quercetin
- Active adults using quercetin phytosome to help maintain post-exercise recovery
- Practitioners protocols requiring bioavailable quercetin for immune and antioxidant support
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.
2492 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 praised for anti-inflammatory and allergy benefits, but Thorne brand faces serious trust issues due to PE acquisition, quality concerns, and counterfeit reports.
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.