is a potent antioxidant and has anti-inflammatory activity, protecting cellular structures and blood vessels from the damaging effects of free radicals. In addition, quercetin powder also lowers blood pressure, enhances capillary resistance, reduces capillary fragility, lowers blood lipids, dilatation of coronary arteries, and increases coronary blood flow. Quercetin powder is also used for the treatment of chronic bronchitis.

KingSci Biotech was established in 2007, is a professional manufacturer specializing in the research, development, and production of active ingredients of plant extracts powder and oil. All our products are well suited to meet the demand of different industries. The products are approved by domestic and foreign customers. Meanwhile, in order to provide better service to our customers, We have found warehouses in LA and NYC. Any questions or inquiries about

: Best Quercetin is widely used as a dietary supplement due to its antioxidant and anti-inflammatory properties. ​

: Quercetin's anti-inflammatory, antioxidant, and potentially antiviral properties make it of interest in pharmaceutical research.

1. More than 10 years chemical exporting experience

We have produced plant extract for more than fifteen years, 80% of products are for export. More than 10 years of plant extract exporting experience. USA warehouses & competitive price.

2. Strict quality control system

3. Supply sample

Before ordering, we can send 10-20g free samples for your testing. We ensure the quality is the same as the bulk quantity.

Is Quercetin The Same As COQ 10?

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