This is the third product I have found that uses a different type of herb to help with bladder health. It is called Butterbur Extract and helps promote good bladder health. The two helpful nutrients in this extract are petasin and isopetasin, which work together in order to eliminate unwanted pyrrolizidine alkaloids. As a bonus, you may also use this natural supplement as a way to prevent migraines or relieve pain from them.