Our Immuno-Aid Zinc Lozenges are packed with a proprietary blend of ingredients that boost the immune system and support overall immune system health, including Zinc, Vitamin C, Echinacea, Elderberry, Marshmallow Root and Slippery Elm Bark. Our Zinc Lozenges are the perfect complement to Kirkman’s Immuno-Aid Advanced Formula capsules to boost immunity during cold and flu seasons.