Arm & Hammer Charcoal White Toothpaste Powered With Activated Charcoal gently removes impurities from the tooth’s enamel surface that can cause daily stains, removing 100% more surface stains. Active Calcium™ works to rebuild and restore enamel surface giving you twice the enamel strength compared to your regular toothpaste. Toothpaste removes stains (discoloration of the teeth) caused by pigments contained in food and drinks or tar contained in cigarettes, and helps teeth to maintain their original color. By cleaning your mouth using Arm & Hammer Charcoal Toothpaste, you can effectively eliminate and prevent bad breath. When activated charcoal is put in toothpaste, it's intended to whiten your teeth because the charcoal is used to lift stains from your teeth and to make your teeth look brighter and whiter. Charcoal toothpaste contains activated charcoal which has increased surface area compared to plain charcoal. This gives it higher adsorptive power, and makes it capable of removing much of the unwanted substances adherent to the tooth surface. This property makes its use more beneficial in comparison to conventional charcoal as a tooth cleansing agent. Baking soda is good for teeth whitening because it is a very mild abrasive, which helps remove stains from the surface of your teeth. In addition, baking soda is alkaline and salty, which helps lighten acid-based food stains – such as those from coffee, tea, and red wine – on teeth. Toothpastes containing baking soda have been shown to have antibacterial properties, which can help protect your teeth from decay. This toothpaste has refreshing peppermint flavor.