Double-down on minty fresh breath with this peppermint mouthwash concentrate. All you need to do is mix one 2 ounce bottle of the concentrate with 14-16 ounces of water and, voila, you have a full size mouth wash. The Starter Kit contains two bottles of concentrated mouthwash and one large bottle to mix it with. Once you fall in love, set up an autoship subscription to the refill bottle so you never run out.