・Just wet the sponge with water and lightly rub the surface of your teeth to remove stains and yellowing caused by coffee, wine, tobacco, etc.
・Made of special melamine foam. The surface of teeth is originally made of countless small bumps, and dirt accumulates in these recesses. To remove dirt from there, the size must be less than 1 micron. "Su・po・n・ji for whitening teeth" is made of ultra-fine fibers of 0.2 microns, so it fits even the fine bumps on the surface of the teeth, removing tar and yellowing, and restoring the original whiteness of the teeth.
・Contains xylitol (sweetener).
・Refreshing mint flavor: The mint flavor contains mint powder, which removes dirt with the sponge and spreads the refreshing aroma of mint throughout your mouth.