The berries and flowers contain antioxidants and vitamins that may boost your immune system. Some experts even recommend elderberry to help prevent and ease cold and flu symptoms. BareOrganics Elderberry Liquid Drops deliver naturally occurring antioxidants to boost the body's natural defenses for immunity support. Made with organic elderberries for optimal wellness support. Just take one dropperful a day. Made in the USA. 1 fl. oz.