Expiration date: 06/2009. Aquafresh 4 Pack Extreme Clean Whitening Mint Toothpaste. Take the feeling of clean to the extreme. As you begin to brush, the bold stripes transform into micro-active foam, whitening your teeth and releasing thousands of germ killing bubbles that shower your whole mouth - teeth, gums and breath. It's dynamic foaming action seeks out hard to reach places - even the back of your tongue - fighting sources of bad breath. It rinses leaving your teeth feeling clean, smooth and brighter. Your whole mouth is energized with an icy cool, sparkling feeling that lasts long after you brush. Extreme Clean Whitening gives you a feeling of clean like nothing else plus whitening. 4pk/7.6oz.