For centuries the dark berries of European Black Elder (Sambucus nigra L.) have been traditionally used as a winter remedy for immune support.* Nature's Way Sambucus Immune Syrup contains a blend of vitamin C, zinc, echinacea, and propolis. This complementary collection of herbs and nutrients was specifically designed to provide comprehensive immune system support.* Now available in a convenient, on-the-go shot!Supports Immunity:- Made with a blend of Vitamin C, Zinc, Echinacea & Propolis, to provide support of the immune system*Premium Elderberries:- Made with Nature Way's unique, full spectrum black elderberry extract, ensuring Flavonoid BioActives content, which has been tested and shown to be active within the body- Elderberry extract is made with a gentle, solvent-free extraction method that ensures maximum flavonoid potency