A formula that works while you sleep to fight the effects of the day. Normal eating and drinking can expose your teeth to sugar acids throughout the day that can leave your teeth vulnerable to cavities - especially overnight. Nightly reset can help fight the effects of the day: It demineralizes enamel to strengthen teeth thanks to its high level of fluoride. It cleans deeply by reaching where brushing can't: reducing plaque build-up, reducing germ accumulation, reducing acid production - caused by food and drinks - that weakens your teeth. It helps prevent cavities. Use before and after sleep as part of a regular routine.