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Quercetin is a powerful bioflavonoid found in grape skins, red onions, apples, and green tea. It promotes a healthy, normal immune response and helps manage seasonal discomfort. Quercetin also supports cardiovascular and skin health, and is a powerful antioxidant that helps neutralize harmful free radicals. A single serving provides 500 mg of Quercetin in vegetarian capsules. Carlson Quercetin is tested by an FDA-registered laboratory for potency and quality.
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🇺🇸 Ship from USA · On Agora since 2026
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