SmartMouth Original Activated Breath Rinse contains a zinc ion solution that activates as you pour to eliminate bad breath instantly and prevents it from returning for a full 24 hours with two rinses a day. NEVER HAVE BAD BREATH AGAIN - SmartMouth's Original Activated bad breath mouthwash uses patented zinc ion technology to stop sulfur producing germs. This eliminates and prevents bad breath or halitosis for 12 hours with every rinse.