Oxidation from peroxide breaks stain particles into smaller pieces

https://devinjdan182.cavandoragh.org/in-office-vs-at-home-teeth-whitening-your-guide-to-expert-teeth-whitening-gilbert-and-affordable-teeth-whitening-gilbert-az-1

Oxidation from peroxide breaks stain molecules into smaller sized pieces, increasing light reflection so teeth appear brighter without physically thinning enamel.