Sensodyne Pronamel Gentle Whitening Toothpaste is specially formulated to protect against acid erosion and also gently yet effectively remove stains, restoring teeth to their natural whiteness. As it contains fluoride it also provides the benefits of a regular toothpaste.Dentists have reported a growing dental health concern due to changing modern diets: 'acid erosion' or 'acid wear'. Even teeth without cavities can be affected.As the enamel becomes thinner, teeth become visibly less white, weaker and sensitive.Everyday foods such as fruit, sodas, orange juice and wine contain acids that soften the enamel surface which is then more easily worn away by brushing. As the enamel layer becomes thinner, teeth can become visibly less white and older looking.Product Benefits:Helps protect the youthful appearance of teeth Formulated with low abrasivity, balanced pH and an effective cleaning system Has fluoride for cavity protection Contains Potassium Nitrate clinically proven to relieve painful sensitivity within two weeksBuilds increasing protection against painful sensitivity of the teeth due to cold, heat, acids, sweets, or contact. Aids in the prevention of dental cavities.Instructions: Adults and children 6 years of age and older: Brush teeth thoroughly, preferably after each meal or at least twice a day, or as directed by a dentist or doctor.Children under 12 years: Instruct in good brushing and rinsing habits. (to minimize swallowing)Children under 6 years: Do not use unless directed by a dentist or doctor. Supervise children as necessary until capable of using without supervision.Usage: Use twice daily.Warnings: Sensitive teeth may indicate a serious problem that may need prompt care by a dentist. Stop use and ask a dentist if the problem persists or worsens. Do not use longer than 4 weeks unless recommended by a dentist or doctor. Keep out of reach of children. If more than used for brushing is accidentally swallowed, get medical help right away.