The Prefilled Teeth Whitening Trays by Burst come with 6 trays divided into 3 treatments, designed for regular size teeth. The active ingredients include Coconut Oil and Hydrogen Peroxide, with a mint flavor and vegan formulation. The trays are paraben-free, sulfate-free, and have an expiration date of 12/2028, making them a convenient and effective option for achieving a brighter and healthier smile. Made in the United States by the trusted brand Burst, these trays offer a simple and efficient way to whiten teeth at home.