Alcohol free. Patented smart-zinc technology. Safe for diabetics. Will not stain teeth, fillings or dentures. Dentist recommended. The power of SmartMouth is in the activation. The combination of SmartMouth's two solutions activates the Smart-Zinc technology, which eliminates and prevents bad breath for at least 12 hours. Rinse in the morning for fresh breath all day; rinse at night and wake up without bad breath - no morning breath! No other mouthwash can do this! Invented by the Chairman of Oral Biology and Pathology at the State University of New York, Stony Brook. Developed by Dr. Marvin Cohen, author of the bad breath section of the Encyclopedia Britannica, 1998 Medical Edition. Made in USA.