Immune Tonic and Immune Zoom duo in our Stay Well Kit are here to help keep your immune system healthy. Our Immune Tonic is an unrivaled formula for daily use featuring medicinal mushrooms and other immune-toning herbs that ensure your immune system is functioning optimally.* Immune Zoom, on the other hand, is best as a first response--save it for when you need a fast-acting boost.* An Urban Moonshine favorite, our Immune Zoom is packed with powerful elderberries, echinacea and warming herbs. It's perfect for the school teacher, the world traveler, and anyone else dealing with the exposures and everyday immune challenges of a busy life. Also wonderful for those with a depleted immune system looking for added support.