Alcohol free. Patented smart-zinc technology. 2 bottle system. The power of SmartMouth is in the activation. Mix the two solutions to activate 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! Alcohol free. Safe for diabetics. Will not stain teeth, fillings or dentures. Effective for both common and persistent bad breath. Simple, clean and easy to use! With regular, twice-daily rinsing, you should experience maximum effectiveness within 1-2 weeks. Re-rinsing is recommended after eating foods containing onion or garlic. Why 2 bottles? That's how it's activated. That's why it works. Smart Mouth Activated Mouthwash consists of two solutions. When the solutions are mixed just before rinsing, the smart-zinc technology is activated for a remarkable 12-hour fresh breath experience. 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. Dentist recommended. Effective for both common and persistent bad breath. Practice environmental sustainability. Please recycle.