Brand from Japan: Kao. This foam effectively kills odor-causing bacteria on your tongue!Simply apply the foam directly to your tongue, gently stir for 10 seconds to distribute it evenly, then brush your teeth.No need to brush your tongue.The fine foam penetrates deep into the tongue coating, cleaning between teeth and the surface of the tongue, effectively preventing bad breath.The antibacterial ingredient CPC (hexadecylpyridine chloride) kills bacteria that cause bad breath and prevents the occurrence and development of cavities.The anti-inflammatory ingredient GK2 (dipota