98% Quercetin Dihydrate Powder

 

Quercetin Dihydrate Powder is a natural plant flavonol belonging to the polyphenol family, extracted from the high-quality flower buds of Sophora japonica (Japanese Pagoda Tree). The dihydrate crystalline form features two water molecules bound into its molecular matrix, providing higher physical stability and consistent batch-to-batch quality during storage and tableting compared to anhydrous forms.

 

Widely recognized as a potent bioflavonoid, antioxidant, and zinc ionophore, Quercetin Dihydrate plays a pivotal role in modulating histamine release, neutralizing free radicals, and supporting cellular immune pathways. Sheerherb supplies premium-grade Quercetin Dihydrate suitable for capsules, tablets, functional premixes, and sports nutrition products.

 

Product Name	98% Quercetin Dihydrate Powder
Properties	yellow powder
CAS.	849061-97-8
MOQ	1kg
EINECS	684-881-2
Molecular weight	320.25

 

 

1) Quercetin has good expectorant and antitussive effects and has a certain anti-asthmatic effect. It is used for the treatment of chronic bronchitis for a long time.

 

2) Quercetin can directly or indirectly exert an antioxidant effect in the body after being absorbed by the intestine.

 

3) Quercetin can reduce the body's immune response to allergens, while quercetin also reduces the sensitivity of neutrophils to inflammatory factors, so as to achieve the purpose of anti-inflammatory.

 

4) Quercetin has broad-spectrum antibacterial properties, and its antibacterial effect on Gram-negative bacteria is stronger than that of Gram-positive bacteria.

 

5) Quercetin also has cardiovascular protection, anti-cancer, hypoglycemic, treatment of keloids, antidiarrheal, antiviral, antithrombotic, anti-obesity, anti-depression, and other effects.

 

Immune & Respiratory Health Supplements

Essential active in daily immune defense capsules, seasonal sinus products, and respiratory support blends.

 

Sports Nutrition & Recovery

Included in endurance formulations to mitigate exercise-induced oxidative stress and promote muscular recovery.

 

Longevity & Senolytic Formulations

Paired with other polyphenols in advanced cellular anti-aging and senolytic supplements.

 

Quercetin Dihydrate + Vitamin C + Zinc Picolinate

Synergistic immune blend where Vitamin C helps regenerate oxidized quercetin, and quercetin enhances intracellular zinc uptake.

 

Quercetin Dihydrate + Bromelain + Citrus Bioflavonoids

Classic allergy and respiratory formulation; Bromelain significantly improves the intestinal absorption of quercetin.

 

Quercetin Dihydrate + Resveratrol + Fisetin

Premium senolytic formulation aimed at clearance of senescent cells and healthy longevity pathways.\

 

We can OEM/ODM capsule or tablet, bottle or bag, private label.

 

 

 

Q: What is the main difference between Quercetin Dihydrate and Quercetin Anhydrous?

A: Quercetin Dihydrate contains two bound water molecules in its crystalline structure, granting superior stability, lower hygroscopicity, and easier powder processing during capsule filling and tableting.

 

Q: How can Quercetin bioavailability be maximized?

A: Co-formulating Quercetin with digestive enzymes like Bromelain, Vitamin C, or lipid carrier systems (such as liposomal formats) significantly boosts intestinal absorption.

 

Q: What is the typical dietary supplement dosage?

A: Standard daily dosage in finished dietary supplements typically ranges from 250 mg to 500 mg, taken once or twice daily.

 

Sheerherb manufactures premium Quercetin Dihydrate extract from high-purity Sophora japonica flower buds. Our crystallization and quality control processes guarantee high purity, low heavy metal levels, and excelente powder flowability for smooth manufacturing. We provide full third-party analytical reports, complete regulatory documentation, and dependable bulk global shipping.

 

If you're comparing Quercetin Dihydrate extract wholesale prices or need a Quercetin Dihydrate raw material supplier for OEM/private label production, contact chriswang@sheerherb.com for current pricing, COA samples, and a formal quote.