Capsules · 60 capsules
Serving Size:
2 Capsules
Amount Per Serving:
Vitamin C (as Ascorbic Acid) ... 150 mg
Vitamin E (as 140 IU d-alpha-Tocopheryl Acetate) ... 93.8 mg
Quercetin Dihydrate ... 600 mg
Other Ingredients:
Hydroxypropyl methylcellulose, microcrystalline cellulose, silicon dioxide, L-leucine.
Other Ingredients: Hydroxypropyl methylcellulose, microcrystalline cellulose, silicon dioxide, L-leucine.
As a dietary supplement, 1 or 2 capsules one to three times daily with meals, or as directed by a health practitioner.
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: Fullscript original manufacturer label · September 06, 2026. Formulas and labels can change. Check the packaging you receive.
Quercetin 300 by Allergy Research Group delivers 300 mg of quercetin per capsule, a bioflavonoid found naturally in fruits and vegetables that supports healthy immune and inflammatory response. Formulated for individuals seeking a straightforward, well-dosed quercetin supplement without unnecessary fillers.
Why It's Worth Considering: Allergy Research Group is a practitioner-trusted brand with a longstanding focus on purity and hypoallergenic formulation standards, making this a reliable option for sensitive individuals. Each capsule provides a clinically relevant dose in a clean, capsule-based delivery format.
As a dietary supplement, 1 or 2 capsules one to three times daily with meals, or as directed by a health practitioner.
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.
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.
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.
Apotheca is analyzing ingredient interactions, stacking compatibility, and timing recommendations for Allergy Research Group - Quercetin 300. This data will be available soon.
† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
