At-home teeth whitening strips work by using a hydrogen peroxide based bleaching gel inserted onto strips that is applied to the teeth.

The gel then bonds with the surface of the teeth and begins to break down the stain molecules.

Teeth whitening strips use a lower concentration of hydrogen peroxide than what is used in professional in-chair whitening treatments, so they take longer to work but are also much gentler on your teeth and gums.

In-office teeth whitening treatments involve higher concentrations of hydrogen peroxide that are applied directly to your teeth by a dental professional.

This means that they can achieve much faster results, but they are also harsher on your teeth and gums.

In addition, in-office teeth whitening treatments use strong LED light machines to activate the Hydrogen Peroxide and speeding up results