Your teeth and gums thrive in a neutral non-acidic environment. The proven power of baking soda in all Arm & Hammer™ toothpastes actively neutralizes acid, helping create the optimal environment for strong teeth and gums. Baking soda neutralizes acid for healthier teeth & gums. The Standard of Purity Naturally Powered by Baking Soda Maximum Baking Soda Advanced Cleaning ADA Accepted®