Natural Factors, Quercetin, 500 mg, 60 Vegetarian Capsules

Dietary SupplementImmune SupportSuitable for Vegetarians/Vegans Quercetin is one of the most well-known antioxidant bioflavonoids. A free radical scavenger, quercetin helps support healthy sinus, respiratory, and immune system function. Isura™: Non-GMO: Documentation ? Mass Spec: Lab Tested ?