Artificially flavored. The gum that cleans your teeth and freshens your breath with the power of Arm & Hammer Baking Soda. Chewing just two pieces daily for 4 weeks has been clinically proven to: Reduce unsightly plaque up to 25%; Significantly whiten teeth (significant stain reduction). Freshen breath for 3 hours. Dentist recommended. May reduce risk of tooth decay. Sugar free with Xylitol. Not a reduced calorie food.