Features: - Enamelast fluoride varnish is a flavored, xylitol-sweetened, 5% sodium fluoride in a resin carrier. - Its unique formula is made with a patented adhesion-promoting agent for enhanced retention, while providing superior fluoride release and uptake. - Patented adhesion-promoting agent for enhanced retention. - Smooth, nongritty texture. - Superior fluoride release and uptake. - Nearly invisible appearance. - Certified nut free and gluten free.