Freshens breath. Proven to reduce morning dry mouth. Easy to use on-the-go. Discreetly sticks to outside of molar and/or adjoining gums. Non-acidic. For use while sleeping. Can be used with braces, dentures, or CPAP machines. Contains no: animal products, corn protein, color, dyes, artificial flavors, or preservatives and no products of nuts, wheat, rice, gluten, soy, egg, fish, shellfish, milk or yeast. All ingredients in XyliMelts exist in nature. No synthetic, artificial, coloring, or preservative ingredients are included. Xylitol is in many plants and animals. The xylitol in XyliMelts is made by conversation of wood sugar (xylose).