Natures Plus Immune Boost is a supplement formulated to boost and support the immune system. These tablets contain a combination of essential nutrients, including vitamin C, vitamin D3, and zinc, which are known to strengthen the immune response. They also contain a blend of natural extracts, such as astragalus and echinacea, which have been traditionally used to support immunity. Maintaining a robust immune system is essential for fighting off illness and maintaining good health. Composition Vitamin C, Vitamin D3, Zinc, Astragalus, Echinacea, Blend of other ingredients. Instructions for use Take 2 tablets daily with food.