Sophorae Japonica Extract Quercetin Dihydrate 98% | Bulk Natural Flavonoid Powder 

In the world of plant-based health ingredients, few compounds are as well-researched and versatile as quercetin dihydrate 98% derived from Sophora japonica (Japanese pagoda tree) flower buds. For decades, this natural flavonoid has been a staple in traditional wellness practices, and modern science continues to validate its wide-ranging benefits for the immune system, inflammation response, cardiovascular health, and more. As a leading supplier of botanical extracts, we specialize in delivering high-purity, GMP-compliant Sophorae Japonica Extract standardized to 98% Quercetin Dihydrate—a premium raw material trusted by supplement manufacturers, formulators, and wellness brands worldwide.

What Is Sophorae Japonica Extract (Quercetin Dihydrate 98%)?

Sophora japonica, also known as the Chinese scholar tree or pagoda tree, is a deciduous tree native to East Asia, with its flower buds (called “Huaimi” in Chinese) being the primary medicinal part. These buds are rich in flavonoids, with quercetin as the most abundant and bioactive component. Our extract is processed via supercritical CO2 extraction and advanced purification to yield 98% pure quercetin dihydrate (CAS: 6151-25-3), a water-soluble, stable form of quercetin with enhanced bioavailability compared to anhydrous quercetin.

Core Health Benefits of Quercetin Dihydrate 98%

1. Potent Antioxidant Protection

Quercetin is a top-tier natural antioxidant, capable of neutralizing harmful free radicals (e.g., superoxide anion, hydroxyl radicals) that cause oxidative stress, cellular damage, and premature aging. It also chelates heavy metal ions and boosts the activity of endogenous antioxidants like SOD (superoxide dismutase) and glutathione peroxidase, strengthening the body’s natural defense against oxidative damage. This makes it ideal for anti-aging supplements, skincare formulations, and daily wellness products.

2. Anti-Inflammatory & Immune Support

Chronic inflammation is linked to nearly all modern health concerns, from arthritis to metabolic disorders. Quercetin works by inhibiting the NF-κB inflammatory pathway and reducing the release of pro-inflammatory cytokines (e.g., TNF-α, IL-1β), effectively easing inflammation in joints, respiratory tract, and digestive system. It also supports immune function by stabilizing mast cells, reducing histamine release, and defending against seasonal allergies, making it a key ingredient in immune-boosting and allergy relief supplements.

3. Cardiovascular Health Support

For heart wellness, quercetin offers multiple benefits:

– Improves blood vessel endothelial function and promotes nitric oxide production, supporting healthy blood pressure levels.

– Inhibits LDL (“bad” cholesterol) oxidation and platelet aggregation, reducing the risk of atherosclerosis and blood clots.

– Enhances capillary strength and reduces fragility, supporting healthy circulation and reducing swelling.

Studies show daily supplementation of 500mg+ quercetin may lower systolic blood pressure by up to 4.45 mmHg and diastolic pressure by 2.98 mmHg, making it a popular addition to heart health formulations.

4. Respiratory & Allergic Relief

Quercetin is widely recognized as a natural antihistamine and respiratory support agent. It stabilizes mast cells to prevent histamine and leukotriene release, easing symptoms of seasonal allergies (hay fever), allergic rhinitis, asthma, and sinusitis. It also soothes respiratory tract inflammation, making it beneficial for people with chronic bronchitis or mild respiratory discomfort.

5. Metabolic & Hormone Balance

Research links quercetin to healthy metabolic function:

– Supports healthy blood sugar levels by improving insulin sensitivity and reducing oxidative stress in pancreatic cells.

– Aids in weight management by promoting fat metabolism and reducing fat cell proliferation.

– Works synergistically with other natural compounds (e.g., DIM, indole-3-carbinol) to support healthy estrogen metabolism and hormone balance in both men and women.

6. Skin Health & Anti-Aging

In skincare, quercetin’s antioxidant and anti-inflammatory properties make it a valuable ingredient for:

– Neutralizing free radicals from UV radiation and pollution, reducing photoaging (wrinkles, fine lines).

– Inhibiting melanin production by blocking tyrosinase activity, brightening skin tone and reducing dark spots.

– Soothing sensitive, inflamed skin and strengthening the skin barrier, making it suitable for sensitive skin formulations.

Common Applications of Sophorae Japonica Extract (Quercetin Dihydrate 98%)

Thanks to its versatility, our 98% quercetin dihydrate extract is widely used across multiple industries:

1. Dietary Supplements: Immune support, allergy relief, cardiovascular health, anti-aging, and hormone balance capsules, tablets, and powders.
2. Functional Foods & Beverages: Antioxidant-rich energy drinks, herbal teas, protein bars, and fortified foods.
3. Cosmetics & Skincare: Anti-aging serums, brightening creams, sensitive skin moisturizers, and sun care products.
4. Pharmaceuticals: Adjuvant formulations for inflammatory conditions, respiratory disorders, and metabolic health.
5. Veterinary Products: Pet immune support and anti-inflammatory supplements.

Why Choose Our 98% Quercetin Dihydrate Extract?

– Unmatched Purity & Quality: Standardized to 98% quercetin dihydrate via HPLC testing; every batch undergoes third-party quality control for heavy metals, pesticides, and microbial contaminants.

– Sustainable Sourcing: Ethically harvested from Sophora japonica flower buds using eco-friendly cultivation practices; no harsh chemicals or solvents in extraction.

– Custom Solutions: Available in bulk (1kg–ton quantities) with flexible packaging options; we offer OEM/ODM services for custom formulations and private labeling.

– Global Supply & Support: Fast, reliable shipping worldwide; our expert team provides technical support, COA/MSDS documentation, and formulation guidance.

Final Thoughts

Sophorae Japonica Extract standardized to 98% Quercetin Dihydrate is more than just a botanical ingredient—it’s a natural, science-backed solution for modern health challenges. From immune defense and inflammation control to heart wellness and anti-aging, its wide-ranging benefits make it a must-have raw material for forward-thinking supplement and skincare brands.

If you’re looking for a high-quality, bulk supply of 98% quercetin dihydrate extract, we’re here to help. Contact our team today to request a free sample, discuss pricing, or learn more about how our extract can elevate your product line.