Developed by dentists, this formula contains active ingredients PAP, hydrogen peroxide, and hydroxyapatite, which are clinically proven to whiten teeth without sensitivity. It targets yellowing teeth, weakened enamel, and staining. The clinically proven ingredients work in 14 days to give you a whiter smile, without any sensitivity. The kit also includes ultra whitening toothpaste, which is vegan and cruelty-free.