Colgate Baking Soda and Peroxide Toothpaste Gel Frosty Mint 6 Oz Tube Colgate Baking Soda and Peroxide Whitening Toothpaste Gel with Frosty Mint flavor is a baking soda and peroxide toothpaste that refreshes and cleans teeth to boost a bright white and healthy smile. Formulated to prevent cavities and the build-up of tartar this teeth whitening toothpaste gel also helps remove stains from teeth along with plaque and impurities with regular brushing.