Power up the antioxidant defences of your cardiovascular system and your entire body with Swanson’s highly effective Quercetin – a completely natural free-radicals-combating weapon! Quercetin is an all-natural antioxidant flavonoid found in onions, apples, green tea, and many other plants. It possesses strong antioxidant properties and protects the blood vessels, as well as all the vital tissues throughout the body, from the devastating effects of free radicals. Quercetin’s potential to help maintain prostate health is drawing more and more attention among researchers. Our highly effective capsules are an excellent and cost-effective way to add this natural defender to your diet.