Planetary Herbals Echinacea-Elderberry Syrup is a winter health supplement, uniting two Western herbal treasures, echinacea and elderberry, with the primary herbs from the classic Chinese compound, Yin Chiao. Echinacea is renowned for its ability to mobilize immune defenses while elderberry is rich in a unique class of flavonoids that support immune resistance. Together, these form an invaluable defense for winter wellness.