Mullein is a wonderful herb for healing the lungs! This product is an herbal Infusion of Mullein into glycerin. The result is a sweeter way to take Mullein internally, as well as a great way to get a fast result. To use, take one dropper as needed to help loosen phlegm and congestion in the lungs. Repeat as needed every few hours if ill. You can also use to help clean out old congestion build up in your lungs. Breathe better, feel better.