Oral compositions

Abstract

A chewable composition for teeth-whitening comprising a first region and a second region separated by a barrier layer; the first region comprising carbamide peroxide having water content of about 2% or less, a wetting agent (e.g., glycerin), an anhydrous chewing gum base having water content of about 1% or less, an anhydrous fruit acid, and one or more gum additives; and the second region comprising a chewable composition comprising a gum base, a source of bicarbonate ion, and one or more gum additives. A kit comprising separate chewable compositions corresponding to the first and second regions, and methods for whitening teeth using the chewable composition are also provided.

Dependencies are inferred from the claim text.