This powerful combination of Goldenseal, Echinacea, Cayenne, & Marshmallow work together to promote a healthy immune system. Goldenseal has the active ingredient of berberine which kills harmful pathogens. Echinacea increases the amount of white blood cells in the body. The capsaicin in cayenne make it a great decongestant. And Marshmallow acts as an enzyme to break up the mucus in the body.