Contains fluoride for cavity prevention and calcium for clean teeth. ADA Accepted (American Dental Association). Fluoride Helps Prevent Cavities: Fluoride helps remineralize soft spots on teeth before they turn into full-fledged cavities, and strengthens the tooth structure so enamel becomes more resistant to decay. Take the Five-Day Flavor Test: Our natural flavor comes from a blend of pure spearmint & peppermint oils and an extract from birch trees. It is never artificially sweetened by saccharin (400 times sweeter than sugar), so give your taste buds a chance to adjust. Use Tom's for 5 days. Then try your regular brand. We'll wager you'll stay with the clean, refreshing taste of Tom's. Tom's of Maine Natural Fluoride Toothpaste has been shown to be an effective decay-preventative dentifrice that can be of significant value when used as directed in a conscientiously applied program of oral hygiene and regular professional care (Council on Scientific Affairs - American Dental Association). Individual body chemistry varies. Please discontinue use if rash or irritation occurs. No saccharin, artificial sweeteners, preservatives, artificial color or flavor and no animal ingredients. Tom's of Maine products are tested for safety without the use of animals. What is Natural Care? At Tom's of Maine, Natural Care is a way of life that guides what we make and all that we do. Our natural care products are made out of respect for you, your environment, and community. Tom's of Maine. Working with nature to make a difference. Active Ingredient: Purpose; Source - Sodium Monofluorophosphate: Purpose - Decay prevention; Source - Fluorspar (calcium fluoride), an ore. Ingredient: Purpose; Source - Calcium Carbonate: Purpose - Mild abrasive; Source - Purified calcium bicarbonate. Water: Purpose - Consistency; Source - Branch Brook. Glycerin: Purpose - Moistener; Source - By-product of vegetable oil soap. Xylitol: Purpose - Flavor; Source - Birch trees. Sodium Lauryl Sulfate: Purpose - Dispersant; Source - Derived from coconut oil. Spearmint & Peppermint Oils: Purpose - Flavor; Source - Spearmint (Mentha spicata) & peppermint (Mentha piperita) leaves. Carrageenan: Purpose - Thickener; Source - Seaweed (Chondrus crispus).