・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 The surface of teeth is originally made of countless small bumps, and dirt accumulates in these recesses.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 natural sweetener xylitol for a slightly sweet taste.
・Bamboo charcoal absorbs dirt! While removing dirt with the sponge, the adsorption components of bamboo charcoal powder absorb dirt from the teeth.