YSX Sparkling Smile gives you whiter teeth in just 40 seconds a day with no need for messy plates, mixing formula or expensive teeth whitening bills from your dentist. Sparkling Smile is a one step easy to use instant tooth whitener. Unlike traditional tooth whiteners, which use special moulded plates that need to be worn for hours at a time, Sparkling Smile is applied once daily directly onto the teeth. Simply spray on the teeth and hold in your mouth for 40 seconds - then rinse. YSX Sparkling Smile helps remove tea, coffee, tobacco and most food stains and is a great breath freshener with it's pleasant minty taste which leaves a wonderful freshness in your mouth. You may see an improvement in just 3 days and a really noticeable change in 30 days