Features Isoquercitrin, offering the benefits of quercetin with superior absorption and bioavailability Helps maintain normal respiratory and sinus function during seasonal challenges Promotes healthy inflammatory balanceBest-selling supplement ALLER-C is a potent and effective combination formula designed to help maintain normal respiratory and sinus function. Aller-C features Isoquercitrin, a clinically studied nutraceutical offering the benefits of quercetin with superior absorption and bioavailability, to help promote cellular antioxidant defenses. Aller-C's combination formula also includes Vitamin C for immune support, Citrus Bioflavonoids to help maintain capillary stability, and Bromelain to promote heatlhy inflammatory balance. This supplement can be used for maintaining and supporting the proper levels of enzymes and physiological factors necessary for normal respiratory and sinus function during seasonal challenges.Dietary Considerations Wheat Free Dairy/ Milk Free Gluten Free Soy Free Sugar Free Egg Free Casein Free Suggested Use2 capsules 2-4 times daily, or as directed by your healthcare professional.Serving Size: 2 Vegetable CapsuleServings Per Container: 100Amount Per Serving % Daily Value Vitamin C (ascorbic acid) 900 mg 1000% Proprietary Blend: 380 mg Citrus Bioflavonoids 92% EMIQ (Enzymatically Modified Isoquercitrin) Bromelain (high potency) Other IngredientsVegetable Cellulose Capsule, Cellulose, LeucineWarningsStore sealed in a cool dry place. Keep out of reach of children. Use only if safety seal is intact. Excludes: Coatings, binders, gluten (wheat, rye, barley), milk/dairy (casein, whey), soy protein, egg protein, sugar.