Derived from Sophora japonica buds, Quercetin powder is a highly purified plant flavonoid with powerful antioxidant and anti-inflammatory properties. As a natural polyphenol, quercetin plays a vital role in supporting immune function, cardiovascular health, and cellular resistance to oxidative stress. Our quercetin powder (≥98%) is extracted using an HPLC-validated clean method to ensure high purity, solubility, and consistency, making it ideal for dietary supplements, functional foods, and cosmetic formulations.

In today’s nutraceutical market, demand for quercetin continues to grow due to growing consumer interest in natural immune boosters and plant-derived bioflavonoids. Compared to synthetic alternatives or lower-grade extracts, our Sophora japonica-based quercetin powder has an extremely stable flavonoid profile with verified residual rutin levels of less than 1.0%, ensuring product consistency and formulation reliability for downstream applications.

We work directly with certified Sophora japonica farmers to ensure batch-to-batch traceability, avoid common adulterations, and provide cleaner products with heavy metal content below 10ppm and solvent residues below ND (non-detectable). We have obtained ISO22000, FSSC22000, HALAL and cGMP certifications to ensure product quality and compliance with relevant regulatory requirements.