Pure Quercetin
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Quercetin protects cells from oxidative damage, reduces inflammation, and supports immunity.
Benefits
Benefits
- Antioxidant defense – neutralizes free radicals to protect cells from oxidative damage.
- Anti-inflammatory action – inhibits key pathways that drive chronic inflammation.
- Immune support – enhances white-blood-cell function for stronger pathogen defense.
Dosage
Dosage
Take one capsule (500 mg) daily with healthy fats for prolonged immune support & allergy relief.
You can adjust the dosage according to your health goals.
Ingredients
Ingredients
- 500 mg of high-purity quercetin per capsule.
- Vegetable cellulose & microcrystalline cellulose for the capsules (safe for vegans).
Also Bought Together
HOW IT WORKS
What is Quercetin?
Think of Quercetin as your body’s personal defense assistant. It’s a plant compound known for its strong antioxidant, anti-inflammatory, and immune system boosting benefits. Quercetin helps your body defend against triggers like dust and other environmental factors that can cause sneezing and congestion, making it popular for managing seasonal allergies.

Quercetin is also a team player—it boosts the effects of bioactive flavonoids and other popular supplements like Vitamin C. Together, they reduce inflammation and improve cellular health by protecting your body from damage caused by free radicals—unstable molecules that build up from stress, poor diet, or pollution.

Senolytic Effects
Quercetin acts as a senolytic agent, meaning it helps eliminate senescent cells—damaged cells that no longer function properly and contribute to aging and age-related diseases. Studies have shown that removing these cells can improve healthspan and potentially extend lifespan by reducing inflammation and cellular dysfunction.
Reduces Inflammation
Quercetin’s anti-inflammatory properties help inhibit the production of inflammatory cytokines and enzymes. This makes it effective in reducing inflammation in conditions like arthritis and asthma. It has also been shown to reduce markers of inflammation, such as C-reactive protein (CRP), making it a useful supplement for managing chronic inflammatory conditions.
Allergy Relief
Quercetin acts as a natural antihistamine by stabilizing cells that release histamine, the chemical responsible for allergy symptoms like sneezing and congestion. Studies have demonstrated its effectiveness in reducing both immediate and late-phase allergic responses, making it beneficial for people suffering from seasonal allergies.
Neuroprotective Effects
Quercetin has shown promise in protecting brain health by reducing oxidative stress and inflammation. It activates pathways like AMPK, which help maintain cellular energy balance and reduce neuroinflammation, potentially slowing the progression of neurodegenerative diseases such as Alzheimer’s and Parkinson’s​.
Supports Cardiovascular Health
Quercetin has shown promise in protecting brain health by reducing oxidative stress and inflammation. It activates pathways like AMPK, which help maintain cellular energy balance and reduce neuroinflammation, potentially slowing the progression of neurodegenerative diseases such as Alzheimer’s and Parkinson’s​.
Antioxidant Properties
Quercetin neutralizes free radicals—unstable molecules that can damage cells and accelerate aging. By scavenging these molecules, quercetin protects cellular structures and promotes overall health. This antioxidant effect also helps improve immune health and to lower the risk of chronic diseases linked to oxidative stress, such as heart disease and neurodegenerative disorders.

HOW TO USE PURE QUERCETIN
Quercetin Dosage
Daily Dosage Recommendations:
Research suggests taking 500 to 1,000 mg of quercetin daily, split into two doses. For general support, 500 mg is common, while up to 1,000 mg is often used for specific needs like reducing inflammation or managing blood pressure. For seasonal allergies, start with one capsule daily and increase to two if needed. Begin supplementation a few weeks before allergy season for the best results.
Best Practices:
Quercetin is best taken with meals that contain healthy fats to improve absorption. Taking it consistently, whether for general wellness or specific health concerns, ensures you get the most benefit.
THE SCIENCE BEHIND PURE QUERCETIN
Quercetin Supplement Facts
Highest Purity: partiQlar’s Pure Quercetin is free from unnecessary fillers and additives. Our formulation contains only pure, active ingredients for maximum potency.
Single-Ingredient Formulation: supported by scientific research, Pure Quercetin provides an effective 500 mg dosage, ensuring maximum potency and flexibility.
Third-Party Tested: each batch undergoes rigorous third-party testing for purity and potency, ensuring transparency and reliability.
Sourced from a reputable and certified supplier, it is manufactured in a facility registered with the US FDA and NSF, adhering to stringent regulatory standards for safety and quality assurance.

Frequently Asked Questions About Pure Quercetin
Seriously, our team of supplement experts and scientists have answers
How is partiQlar's Pure Quercetin better?
How is partiQlar's Pure Quercetin better?
PartiQlar’s Pure Quercetin is formulated with the highest quality ingredients. Our single-ingredient formulation ensures maximum potency and flexibility, without unnecessary fillers or additives. Each batch is third-party tested for purity, potency, and safety, providing a reliable and effective supplement.

Does Quercetin improve athletic performance?
Does Quercetin improve athletic performance?
While animal studies suggested that Quercetin could enhance endurance and physical performance, human studies have shown mixed results. Research indicates that Quercetin does not significantly improve athletic performance in humans, particularly in untrained individuals.Â
Quercetin benefits seem to be related more to recovery and reducing exercise-induced inflammation rather than enhancing performance directly.
Can Quercetin help with seasonal allergies?
Can Quercetin help with seasonal allergies?
Yes, Quercetin has natural antihistamine properties that can help alleviate symptoms of seasonal allergies, such as sneezing, itching, and congestion. By stabilizing mast cells and reducing histamine release, Quercetin can provide relief from allergic reactions.
Can Quercetin be taken with Vitamin C?
Can Quercetin be taken with Vitamin C?
Yes, Quercetin and Vitamin C are often taken together as they can work synergistically. Vitamin C may enhance the absorption of Quercetin and amplify its antioxidant effects, providing additional immune support and anti-inflammatory benefits.
Can Quercetin help with COVID-19?
Can Quercetin help with COVID-19?
While Quercetin has anti-inflammatory and immune system supporting properties, there is currently no conclusive evidence that it can prevent or treat COVID-19. It may support overall immune health, but it should not be used as a substitute for vaccines or other proven treatments. Always follow public health guidelines and consult with a healthcare provider.

Can Quercetin be taken every day?
Can Quercetin be taken every day?
Yes, Quercetin supplements are generally safe for daily use when taken at recommended dosages. Consistent daily supplementation can support the immune system, reduce inflammation, and promote overall health. It’s always best to consult with a healthcare provider to determine the appropriate daily dose for your specific needs.
Are there any side effects associated with Quercetin?
Are there any side effects associated with Quercetin?
As with most bioactive flavonoids, Quercetin is generally well-tolerated, but some individuals may experience mild side effects such as headaches, digestive discomfort, or tingling sensations. Taking Quercetin with food can help minimize these effects. If you experience any adverse reactions, consult with a healthcare provider.

Additionally, if you intend to take any other supplements or bioactive flavonoids, start with a single one first to assess your reaction.
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