Xyli-White Mouthwash - Cinnafresh from NOW is an effective fluoride-free oral rinse that works in unique ways to help you achieve a smile that s healthier and brighter than ever before! Xyli-White Cinnafresh Mouthwash gets its cleansing properties from xylitol - a naturally occurring sugar alcohol that has been shown in clinical studies to help promote dental health. Xylitol also helps safeguard healthy tooth enamel surfaces. By preventing the mouth s pH levels from falling below their normal range Cinnafresh Mouthwash protects the enamel surface of teeth.