High-purity quercetin extract supplied by a bioengineering company ensures consistent antioxidant delivery. Partner with leading hyaluronic acid manufacturers and chitosan suppliers for integrated formula innovations.
Botanical Origin and Functional Profile
Quercetin by GOTHINK Biotech is a natural flavonoid extracted primarily from the flower buds of Sophora japonica. This plant extract possesses strong antioxidant, anti-inflammatory, and immune-modulating properties that help protect cells from oxidative damage and promote overall health. Known for its support in cardiovascular wellness and immune balance, Quercetin is a vital component in dietary supplements, functional foods, and skin care formulations that target free radical neutralization and inflammation reduction.
Production Process and Quality Assurance
GOTHINK Biotech employs advanced extraction and purification technologies to obtain high-purity Quercetin with stable bioactivity. The process ensures precise control over flavonoid concentration and particle uniformity, optimizing absorption and solubility. Every production batch undergoes rigorous analytical testing for purity, heavy metals, and microbial safety. As a certified bioengineering company, GOTHINK Biotech integrates sustainability with innovation, ensuring traceable sourcing, GMP-compliant manufacturing, and eco-friendly extraction processes.
Applications and Product Integration
Quercetin is widely applied in dietary supplements, where it supports immune resilience, respiratory function, and oxidative balance. In skin care, it contributes to improved tone and protection against UV-induced stress, while reducing redness and irritation. In food and beverage formulations, its natural antioxidant properties extend shelf stability and enhance nutritional profiles. Its clean-label, non-GMO, and vegan-friendly nature aligns with global consumer demand for natural, science-backed functional ingredients.
Botanical Source
Quercetin is a natural flavonoid compound extracted from the dried flower buds of Sophora japonica L. (Japanese pagoda tree), a traditional Chinese medicinal plant known for its antioxidant and anti-inflammatory properties.
ISO 9001 (Quality Management System)
ISO 22000 (Food Safety Management System)
ISO 17025 (Laboratory Testing Accreditation)
HACCP (Hazard Analysis and Critical Control Points)
These certifications ensure consistent purity, traceability, and compliance with global regulatory standards.
Product Specifications
Quercetin Dihydrate: > 95.0% (HPLC)
Quercetin Anhydrous: ≥ 95.0% (HPLC)
Tested by high-performance liquid chromatography (HPLC), our quercetin meets pharmaceutical and nutraceutical-grade standards, suitable for dietary supplements, functional foods, and cosmetic formulations.

Product Advantages
Superior Antioxidant Efficiency and Stability
The high flavonoid concentration in Quercetin enables strong reactive oxygen species (ROS) scavenging capacity, promoting cellular protection and longevity. Its molecular structure ensures high stability during processing and storage, allowing consistent antioxidant performance in diverse product forms such as capsules, powders, or beverages.
Enhanced Bioavailability and Solubility
Through optimized crystallization and microencapsulation techniques, GOTHINK Biotech improves the dispersibility and bioavailability of Quercetin. The ingredient dissolves efficiently in both aqueous and lipid environments, enabling flexible application in dietary supplements and skin care systems. This technological advantage provides superior absorption efficiency compared with conventional extracts.
Versatile Formulation Compatibility
Quercetin blends seamlessly with complementary actives such as hyaluronic acid, glucosamine, and GABA, creating synergistic formulations that enhance immune, joint, and beauty functions. Its neutral taste and fine granularity make it suitable for tablets, functional beverages, and topical emulsions. These characteristics reinforce its role as a multifunctional ingredient in modern nutraceutical and cosmetic innovation.

Features & Benefits
High-purity natural extract
Strong antioxidant and anti-inflammatory activity
Non-GMO, solvent residue controlled
Free from synthetic additives and artificial coloring
Applications
Widely used in the fields of:
Dietary supplements and nutraceuticals
Functional beverages and health foods
Anti-aging and anti-inflammatory skincare products
Pharmaceutical intermediates


