Gluten Free Nutrition Non Gmo Project Verified Dietary Supplement Contains QU995 The World's Purest Quercetin May Support Prostate and Kidney Health Supports Immune Health Our Quercetin is sourced from the Dimorphandra mollis (Fava D Anta pods) plant in Brazil. This plant produces the purest and highly bioavailable form of quercetin, QU995. In the body, it acts as an antioxidant to protect the body from free radicals while recycling vitamin C and supporting immune health.