Closeup anti-bacterial Nature Boost mouthwash is infused with active zinc formula that has proven action against bacteria for whole mouth protection 24/7*. it reaches all over the mouth and areas that are hard to reach with brushing alone to deliver 24 long lasting fresh breath* and confidence. enjoy the refreshing burst of flavor. How to use: rinse with undiluted 20ml for 30 seconds. gargle & expel. do not swallow the rinse. use twice daily. do not rinse mouth with water or eat or drink 30 minutes post rinse. for best results, use together with closeup toothpaste.Storage direction: store in a cool and dry place. keep it away from direct heat or sunlight. Safety warning: for external use only. not to be swallowed. keep out of reach of children.