Quercetin Bioflavonoids, 100 Capsules
100 Capsules
May be a fit for
- Adults seeking quercetin support for seasonal respiratory comfort
- Individuals using quercetin bioflavonoids to help maintain healthy histamine balance
- Practitioners protocols requiring flavonoid compounds for immune modulation support
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Quercetin Bioflavonoids from Allergy Research Group delivers quercetin, a naturally occurring flavonoid found in fruits and vegetables, in capsule form. It supports healthy immune function and may help maintain normal inflammatory responses, making it a practical option for those seeking targeted bioflavonoid supplementation.
Why It's Worth Considering: Allergy Research Group formulates with a practitioner-focused standard, and this straightforward quercetin preparation avoids unnecessary fillers, a detail that matters for sensitive individuals or those following elimination protocols.
Allergy Research Group · 100 CapsulesMake it part of your routine.
As a dietary supplement, take 1 capsule one twice daily with meals, or as directed by a healthcare practitioner.
Important cautions & interactions
WARNING: Consuming this product can expose you to lead, a chemical known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/food
Product details
Supplement facts & complete label
Serving Size:
2 Capsules
Amount Per Serving:
Lemon Bioflavonoid Complex ...800mg*
Quercetin Dihydrate ...100mg*
Citrus (Fruit) Extract (containing 92% Hesperidin) ...100mg*
Rutin ...100mg*
Other Ingredients:
Hydroxypropyl methylcellulose, microcrystalline cellulose, L-leucine.
Label directions
As a dietary supplement, take 1 capsule one twice daily with meals, or as directed by a healthcare practitioner.
Label cautions
Keep in a cool, dry place, tightly capped.
WARNING: Consuming this product can expose you to lead, a chemical known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/food
Source: authorized supplier original manufacturer label · September 06, 2026. Formulas and labels can change. Check the packaging you receive.
Who it may suit
May be a fit for
- Adults seeking quercetin support for seasonal respiratory comfort
- Individuals using quercetin bioflavonoids to help maintain healthy histamine balance
- Practitioners protocols requiring flavonoid compounds for immune modulation support
- Those supporting antioxidant defenses with plant-derived quercetin bioflavonoids
Considerations
- Taking cyclosporine (quercetin increases blood levels)
- Taking fluoroquinolone antibiotics (quercetin may interfere)
- Kidney disease (high doses may contribute to oxalate stones)
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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.