Listerine Cool Mint mouthwash with an intense mint flavor is perfect for everyday care. Used twice a day for 30 seconds, it will provide fresh breath and 24-hour protection against plaque-causing bacteria. How does Listerine Cool Mint Mouthwash 500ml work? Prevents and reduces the formation of dental plaque, considered one of the main causes of gum disease. Removes bacteria from the mouth. freshens the breath. It does not disturb the natural balance of the oral bacterial flora, even with long-term use. Listerine Cool Mint mouthwash contains essential oils: eucalyptus, thymol and menthol and methyl salicylate. Effectively fights bacteria left after brushing, including in places where the toothbrush cannot reach, for example in the spaces between the teeth, on the gums and on the tongue. It not only prevents the formation of dental plaque, but also reduces existing plaque.It provides a long-lasting sensation of freshness for up to 12 hours.