This popular formula has several immune enhancing ingredients including two very popular herbs, echinacea and goldenseal. Echinacea is an herb that contains many valuable medicinal compounds that support the immune system. Several active constituents in echinacea work synergistically to increase the production and activity of white blood cells, lymphocytes, and macrophages. Other constituents increase our body’s production of interferon. All of these play an important part as defense mechanisms of our immune system to help ward off unwanted microbes. This increased immune system activity helps to speed wound healing, reduce inflammation, and fight off infectious organisms. Goldenseal has a long-standing tradition of use as a useful herbal remedy. It is used to help alleviate inflammation and irritations of the mucous membranes of the respiratory, digestive, and urinary tracts. Its two primary active constituents are hydrastine and berberine. These two alkaloids appear to be responsible for goldenseal’s ability to fight off unwanted microbes. It also helps to dry up the mucous membranes. These two activities make it a useful herb to help keep our respiratory, urinary and digestive tracts healthy.