Mouthwash plays a vital role in helping people maintain a healthy mouth. Majority of mouthwash is used to help people kill germs that causes bad breath. However some mouthwash can also help with teeth whitening, dry mouth (xerostomia), bleeding gums/gingivitis, and more. It is estimated the more then 50% of the population suffers from halitosis which is a condition in which someone has bad breath. There have been numerous clinical studies in which mouthwash has been shown to reduce the amount of odor causing bacteria leaving the person with fresh breath.