Quercetin is a powerful flavonoid naturally found in various fruits, vegetables, and plants, such as Sophora Japonica. It has gained popularity for its potent antioxidant properties and various health benefits. Quercetin has been studied for its ability to support immune function, reduce inflammation, and act as a natural antihistamine, making it a valuable ingredient in supplements and health products. Our high-quality Quercetin powder is carefully extracted to ensure maximum purity and effectiveness, providing you with a reliable ingredient for your formulations.
We can offer:
Quercetin 98%
Quercetin Granular, Anhydrous (20 mesh)
Isoquercetin
liposomal quercetin
Quercetin Dihydrate
Dihydroquercetin
Specifications for Quercetin
|
ITEM |
SPECIFICATION |
RESULTS |
TESTING METHOD |
|
PHYSICAL CONTROL |
|||
|
Assay |
Quercetin≥95.0% Quercetin≥98.0% |
95.85% 99.7% |
HPLC UV |
|
Appearance |
Yellow Crystalline Powder |
Complies |
Organoleptic |
|
Odor |
Characteristic |
Complies |
Organoleptic |
|
Sulphated Ash |
≤0.2% |
0.07% |
Eur.Ph. <2.8.17> |
|
Bulk Density |
0.5~0.7g/ml |
0.58g/ml |
Eur.Ph. <2.9.12> |
|
Loss on drying |
≤9.0%~12.0% |
9.2% |
Eur.Ph. <2.8.17> |
|
Sieve Analysis |
100% pass 80 mesh |
Complies |
80 mesh screen |
|
CHEMICAL CONTROL |
|||
|
Heavy Metals |
≤10ppm |
Complies |
Eur.Ph. <2.4.24> |
|
Arsenic(As) |
≤1 ppm |
0.02ppm |
Eur.Ph. <2.4.24> |
|
Mercury |
≤0.1 ppm |
0.03ppm |
Eur.Ph. <2.4.24> |
|
Cadmium |
≤1ppm |
Negative |
Eur.Ph. <2.4.24> |
|
Lead |
≤1ppm |
0.03ppm |
Eur.Ph. <2.4.24> |
|
MICROBIOLOGY CONTROL |
|||
|
Total Plate Count |
≤1000 cfu/g |
153 cfu/g |
Eur.Ph. <2.6.12> |
|
Yeast & Mold |
≤100 cfu/g |
Complies |
Eur.Ph. <2.6.12> |
|
E.Coli |
Negative |
Complies |
Eur.Ph. <2.6.12> |
|
Salmonella |
Negative |
Complies |
Eur.Ph. <2.6.13> |
Benefits of Quercetin
- Antioxidant Power: Quercetin is a potent antioxidant, helping to neutralize free radicals in the body and reduce oxidative stress, which can lead to aging and chronic disease.
- Supports Immune Health: Known for its immune-boosting properties, Quercetin helps strengthen the body's natural defense systems, promoting overall health and well-being.
- Reduces Inflammation: Quercetin has been shown to reduce inflammation in the body, which can aid in the management of conditions like arthritis and cardiovascular diseases.
- Allergy Relief: As a natural antihistamine, Quercetin helps reduce symptoms of allergies, such as sneezing, itching, and runny nose, by inhibiting the release of histamine.
- Improves Heart Health: Quercetin may help lower blood pressure and improve circulation, contributing to better cardiovascular health and reducing the risk of heart disease.
Applications of Quercetin
- Dietary Supplements: Quercetin is commonly used in supplements designed to improve immune function, reduce inflammation, and support overall health. It is often included in products aimed at reducing allergy symptoms and promoting heart health.
- Cosmetics: Due to its antioxidant and anti-inflammatory properties, Quercetin is included in skincare products to protect the skin from environmental damage, reduce signs of aging, and improve skin health.
- Functional Foods: Quercetin is sometimes added to functional food products for its health benefits, especially in food items designed to enhance the immune system and reduce inflammation.
- Pharmaceuticals: It is also used in pharmaceutical formulations, especially those targeting conditions related to inflammation, cardiovascular health, and immune support.
Why Choose Our Quercetin?
- High Purity: Our Quercetin is extracted to a purity level of 98%+, ensuring maximum potency and effectiveness for your formulations.
- Reliable Sourcing: We source our Quercetin from high-quality Sophora Japonica and other natural sources to guarantee consistent product quality.
- Scientific Backing: Our quercetin is backed by scientific research that supports its benefits for immune health, inflammation reduction, and overall wellness.
- Manufactured to the Highest Standards: Produced under strict quality control measures, our Quercetin powder undergoes rigorous testing to ensure it meets the highest standards of quality.
- Fast Delivery and Excellent Support: We offer timely shipping and excellent customer support to help you meet your production timelines and provide you with the best service.
FAQ
1. What is quercetin used for?
Quercetin is commonly used to boost immune health, reduce inflammation, and manage allergy symptoms. It is also used for its antioxidant properties and heart health benefits.
2. Is quercetin safe to take long-term?
Yes, quercetin is generally considered safe for long-term use when taken within recommended doses. However, it's always advised to consult with a healthcare professional before starting any new supplement regimen.
3. What is the best way to take it?
Quercetin is often taken in capsule or powder form, typically with food to enhance absorption. Dosages may vary depending on the intended use, so it's important to follow the product instructions or consult a healthcare provider.
4. Can Quercetin help with seasonal allergies?
Yes, Quercetin is a natural antihistamine and can help reduce symptoms of allergies such as sneezing, runny nose, and itchy eyes by inhibiting the release of histamine in the body.
5. How should I store Quercetin?
Quercetin should be stored in a cool, dry place, away from direct light and moisture, to preserve its potency and shelf life.
Our Certification
We are certified ISO9001, HACCP, Kosher, Halal, and EU NOP Organic Certification.

Customer feedback
Our commitment to purity and potency speaks for itself. With outstanding feedback internationally, our product is a verified choice for businesses seeking reliability and excellence.

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Beton is your trusted partner, dedicated to listening to customers, solving every problem, and providing quick responses. For any questions or assistance regarding products, feel free to contact us.
Email: dh@betonnutrition.com
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WhatsApp: +86 18792880979
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