Kill germs that cause bad breath, plague & the gum disease gingivitis. ADA (American Dental Association) accepted. Clinically proven. Kills germs by millions on contact. Use Cool Mint Listerine Antiseptic twice daily to help prevent & reduce plague; fight bad breath; prevent & reduce gingivitis; kill germs between teeth. Cool Mint Listerine Antiseptic has been shown to help prevent and reduce supragingival plague accumulation and gingivitis when used in a conscientiously applied program of oral hygiene and regular professional care. Its effects on periodontitis has not been determined (Council on Scientific Affairs, American Dental Association). Cold weather may cloud Cool Mint Listerine. Its antiseptic properties are not affected.