Skip to content
Toothpaste Rankings
depends

Potassium Nitrate

Also known as: KNO3

A proven sensitivity desensitizer in many clinical pastes.

01. What it is

What it is

A salt that helps calm nerve response in dentin hypersensitivity protocols.

02. Why it’s used

Why it’s used

Sensitivity relief in brands like Sensodyne and some specialty clean SKUs.

03. The concern

The concern

Does not replace remineralization strategy; often paired with conventional paste bases that include SLS.

04. Our take

Our take

Depends on your goal. Effective for sensitivity; seek it in cleaner bases if you want both calm nerves and a better avoid list.

05. Found in

Brands we reviewed

These ranked pastes list or rely on this ingredient in the formula we evaluated.

06. Sources

Further reading

Third-party citations, not studies we ran.