Experience 24 hours of fresh breath with LISTERINE® Breath Defense*. Featuring odor-neutralizing technology, this alcohol-free mouthwash kills germs, purifies odor molecules, & prevents bad breath. Enjoy a fresh & smooth mint flavor leaving a refreshing whole-mouth feel. This alcohol-free mouthwash is formulated with odor-neutralizing technology and delivers triple-action bad breath defense for 24-hrs*. Our best mouthwash for bad breath.