Yogi Echinacea Immune Aid tea blends Echinacea, widely used by herbalists to Aid immune function, with Black Elderberry Extract and Mullein, herbs traditionally used to Aid respiratory function. With flavorful Peppermint, Lemongrass, and Licorice, Yogi Echinacea Immune Aid tea is a delicious way to Aid your immune system any time of the year.