2% neutral sodium fluoride thixotropic gel. Provides non-acidic balance - flows easily during placement then thickens during treatment to minimize gagging. Contains Xylitol. Safe for patients with porcelain or resin cosmetic restorations - will not dull or etch. Special antimicrobial and flavor retention formulation for increased patient acceptance. Four minute treatment. Soft dispensing bottle with side window - provides approximately 120 applications.