Active Ingredients- Potassium nitrate 5%- Antihypersensitivity. Sodium fluoride 0.25% (0.15% w/v fluoride ion) - Anticavity. Inactive Ingredients- Water, sorbitol, hydrated silica, glycerin, PEG-8, cocamidopropyl betaine, flavor, xanthan gum, sodium saccharin, titanium dioxide, sodium hydroxide. Directions- Adults and children 12 years of age and older: Apply at least a 1-inch strip of the product onto a soft bristle toothbrush. Brush teeth thoroughly for at least 1 minute twice a day (morning and evening), and not more than 3 times a day, or as recommended by a dentist or doctor. Make sure to brush all sensitive areas of the teeth. Minimize swallowing. Spit out after brushing. Children under 12 years of age: Consult a dentist or doctor. Warnings- When using this product, if irritation occurs discontinue use. Stop use and ask a dentist if the problem persists or worsens. Sensitive teeth may indicate a serious problem that may need prompt care by a dentist. Pain/sensitivity still persists after 4 weeks of use. Keep out of reach of children. If more than used for brushing is accidentally swallowed, get medical help or contact a Poison Control Center right away.