For a healthy looking white smile. Whitens teeth safely. Prevents stain buildup. Kills bad breath germs. Get teeth white and keep them white with Listerine Whitening Refresh Rinse. Its dynamic foaming action starts to work on contact to safely whiten teeth and kill bad breath germs. Use twice a day for a whiter, more confident smile. Works on contact to whiten teeth safely. Prevents stain buildup. Keeps teeth white. Kills bad breath germs. This bottle contains approximately 32 uses or 16 days of usage. May see whitening after 6 weeks. Full results expected at 12 weeks. Results may vary.