Source Naturals, Aller-Response, 180 TabsProduct Description Dietary Supplement Seasonal Immune Support* Product Benefits Source Naturals Aller Response is a Bio Aligned seasonal formula that provides systemic support for the sinuses, lungs, and immune system. Ingredients Supplement Facts For Tablet Serving Size: 3 Tablets Amount %DV Calories 10 Total Carbohydrate 1 g <1% Dietary Fiber 1 g 4% Vitamin A (as ascorbyl palmitate) 2,500 IU Vitamin C (as ascorbic acid & zinc ascorbate) 500 mg 833%