Sensodyne Sensitivity & Enamel Whitening is a dual action fluoride toothpaste that helps restore enamel strength and relieves sensitive teeth. With Sensodyne Sensitivity & Enamel toothpaste you can take control of not 1, but 2 concerns: It has a dual action formula which helps restore enamel strength and relieve teeth sensitivity. Sensodyne Sensitivity & Enamel is a fluoride toothpaste which can be used everyday and provides daily care that protects the enamel surface and protects teeth against sensitivity. It drives more fluoride and calcium into the enamel surface.Enamel is the tooth’s thin outer surface that keeps teeth strong, healthy and protects the dentine. Enamel wear is when the outer layer of the teeth erodes, and the underlying yellow dentine is exposed. Acids in everyday foods and drinks can weaken and wear away your tooth enamel. Over time, this can lead to sensitive teeth. DUAL ACTION ENAMEL PROTECTION + SENSITIVITY RELIEF: Sensodyne Sensitivity & Enamel Whitening Toothpaste has a dual action formula which helps restore enamel strength and relieve teeth sensitivity. HELPS RESTORE ENAMEL STRENGTH: The fluoride optimised formulation helps to restore enamel strength by driving more fluoride into the enamel layer. It starts to actively strengthen enamel from 1st use. Sensodyne Sensitivity & Enamel Whitening Toothpaste contains fluoride for daily enamel protection against acid erosion. It also contains Potassium nitrate that works deep inside the tooth to help calm painful sensitivity and provide 24/7* sensitivity protection.Dual action sensitivity relief and enamel protectionFluoride-optimised formula that starts to actively strengthen enamel from 1st brushDrives more fluoride into enamel layerWorks deep inside the tooth to help calm painful sensitivity, providing 24/7 sensitivity protection with twice daily brushing.Contains fluoride for daily enamel protection against acid erosion.