SmartMouth The Original Activated Dual-Solution Breath Rinse Mouthwash provides relief from the symptoms and discomfort of dry mouth. SmartMouth dry mouth refreshes, moisturizes, rehydrates, cleans, and soothes oral irritation while lubricating oral dryness unlike any other mouth rinse out there. Utilizing patented zinc ion technology, SmartMouth delivers fresh breath for 12 hours with a single rinse. SmartMouth is also a great kid mouthwash for youngsters over the age of six.