Nature's Lab® Super Vitamin C With Quercetin & Citrus Bioflavanoids - 120 Capsules Nature Lab Super Vitamin C Is A Premium Formula Featuring Quercetin, Bioflavonoids And Vitamin C From Calcium Ascorbate, A Source Of Vitamin C That Is Non-Acidic And Gentle On The Stomach. Vitamin C Is An Essential Vitamin That S The Production Of Healthy Blood Cells To Immune Health. Vitamin C Also S Antioxidant Health To Protect The Body From Oxidative Stress. Quercetin Is Derived From Plant Substances Known As Flavonoids. Citrus Bioflavonoids Are A Group Of Compounds That Occur Naturally In Citrus Fruits. Both Of These Natural Antioxidants May Prevent Histamine Release To Inflammatory Health. S Immune System Health & Cardiovascular Health Gentle, Non-Acidic Vitamin C 1400Mg Per Serving | Nature's Lab Super Vitamin C With Quercetin & Citrus Bioflavanoids Healthy - 120 Capsules (60 Servings)