Sensodyne Rapid Relief Toothpaste Ingredients Explained

If you're someone who struggles with tooth sensitivity, you may be familiar with the discomfort that comes with enjoying your favorite hot and cold foods. If that’s the case, you’re not alone: a whopping 11.5% of dental patients experience sensitive teeth at some point.1 The good news is that Sensodyne Rapid Relief Toothpaste is formulated to bring you the sensitivity relief you crave. Learn about the ingredients that make Sensodyne Rapid Relief protect your pearly whites from sensitivity.*

The Active Ingredient in Sensodyne Rapid Relief

Sensodyne Rapid Relief’s active ingredient is stannous fluoride, a compound made of tin and fluoride. Every ADA-accepted toothpaste needs to contain fluoride; stannous fluoride helps to relieve sensitivity.1

This powerful ingredient helps protect against cavities and helps combat tooth sensitivity by forming a protective layer over your exposed dentin—the sensitive portion of your tooth. This protective barrier acts as a shield, strengthening your teeth against erosive acids while remineralizing your tooth enamel in the early stages of decay.1 In addition, stannous fluoride contains antibacterial properties to help prevent harmful plaque bacteria from growing in your mouth.2

Additional Ingredients in Sensodyne Rapid Relief

While stannous fluoride is the active ingredient, Sensodyne Rapid Relief also contains several other ingredients. Learn about each ingredient in Sensodyne Rapid Relief Toothpaste and its role below.


Humectants like glycerin are added to toothpaste because of their ability to maintain moisture and minimize water loss. In Sensodyne Rapid Relief, glycerin ensures that toothpaste has a smooth texture and doesn’t harden in the tube or when it’s exposed to air.1,2


PEG-8 is a binding ingredient that helps maintain toothpaste's consistency and prevents it from separating. Binders like PEG-8 help prevent the powder and liquid ingredients from separating while giving your toothpaste its elasticity and form. Like glycerin, binders also prevent your toothpaste from drying out by binding water molecules within it. Lastly, they disperse the toothpaste around your teeth and help it foam while you brush.2

Hydrated Silica

Hydrated silica is an abrasive ingredient that helps physically clean your teeth and remove surface stains. It's the gentle polishing ingredient in Sensodyne Rapid Relief that keeps your teeth clean and bright without scratching them.1,2

Pentasodium Triphosphate

Pentasodium triphosphate, a form of sodium phosphate, works with stannous fluoride to help remove surface stains and prevent tartar buildup.1,2


Flavor, often a combination of various ingredients, is added to make your toothpaste more palatable and pleasant to use. It makes brushing your teeth a refreshing sensory experience, which helps encourage consistent oral hygiene.

Flavoring ingredients cannot contain sugar, as that could contribute to tooth decay.1 Sensodyne Rapid Relief contains sodium saccharin, a sugar-free sweetening agent that enhances the toothpaste's taste, making it more appealing and enjoyable to use.

Sodium Lauryl Sulfate

Sodium lauryl sulfate is a surfactant that’s added to toothpaste to help it foam. It's what gives Sensodyne Rapid Relief its satisfying lather. In addition, it helps distribute the toothpaste evenly while you brush, gives you a feeling of cleanliness and removes debris and residue from the surface of your teeth. It also disperses the flavors in your toothpaste evenly to help with the taste and smell.2

Titanium Dioxide

Titanium dioxide is a pigment used to give toothpaste its white color. It's purely aesthetic and doesn't have a direct impact on the toothpaste's performance.2

Polyacrylic Acid

Polyacrylic acid is used as a binder to hold the toothpaste's various components together.2 It ensures that the toothpaste remains stable and consistent in texture.

Cocamidopropyl Betaine

Cocamidopropyl betaine is a surfactant that helps clean your teeth.2

How These Ingredients Works Together

Sensodyne Rapid Relief’s formula brings these ingredients together to provide sensitivity relief. The active ingredient, stannous fluoride, helps reduce sensitivity and protect against cavities. In addition, the inactive ingredients help maintain the toothpaste's texture and flavor while improving the user’s experience.2

If you want to enjoy hot and cold treats without sensitivity, try Sensodyne Rapid Relief for clinically proven sensitivity relief every day after brushing for three days.** For a whiter smile and sensitivity relief, try Sensodyne Rapid Relief Whitening Toothpaste to minimize surface stains as you brush.*

*With twice daily brushing**significant pain relief in 3 days*