Biotene Dry Mouth Oral Rinse is specially formulated to provide immediate Dry Mouth symptom relief that lasts for up to 4 hours (as measured in a 28-day clinical study) while it freshens breath. When used as part of daily oral health care routine, it is an ideal oral rinse for managing Dry Mouth symptoms. It contains a mouth-moisturizing system to provide soothing, lubricating relief and its gentle, alcohol-free formula freshens mouth, while helping to keep it clean, to maintain a healthy mouth.