Providing 67% of the recommended daily intake of Vitamin C, each Zand Immunity Orange C HerbaLozenge is formulated to help support immune function, essential during the winter months. In addition, our special blend of herb and plant extracts -- Hibiscus Flower, Orange Peel, Lemon Peel, Rose Hips, Lemongrass, Perilla Leaf, and Schizonepeta Herb -- works synergistically to help soothe your throat.