Quercetin is a bioflavonoid, naturally occurring in fruit and vegetables, and in particular foods such as apples and onions are rich in it, but also capers, grapes, green tea, blueberries, propolis, celery and citrus fruits. Quercetin, like many other flavonoids, is an antioxidant substance with antiatherogenic and antitumor properties. It is also neurologically active, with effects similar to those of caffeine, although less intense. Quercetin is sold as a supplement to prevent cardiovascular disease, treat prostate infections, improve athletic performance, and manage allergies.

-95% powder/granular

(CAS No.:6151-25-3)