Sensodyne Sensitivity & Gum Whitening 100g is a toothpaste. Its ingredient list states stannous fluoride 0.454% w/w and sodium fluoride 0.0721% w/w (1450 ppm fluoride). Brush twice a day and not more than three times, minimise swallowing and spit out. Always follow the product label. Warnings: Do not use if carton seals are broken. Replace lid to keep product dry. Sensitive teeth may indicate an underlying problem that needs prompt care, if symptoms persist or worsen see a dentist. Not for use by children under 12 years of age, unless on advice of a dentist or doctor. If irritation occurs discontinue use. Keep out of reach of children. Do not use if you are allergic to any of the ingredients. Allergic reactions are very rare, if you experience swelling of the mouth or face, discontinue use immediately and talk to your dentist or doctor