Compositions useful for tooth whitening

Details Compositions useful for tooth whitening Compositions useful for tooth whitening

A - Human Necessities

61

K

A61K 8/92 (2006.01) A61K 8/22 (2006.01) A61K 8/33 (2006.01) A61Q 11/00 (2006.01)

Patent

CA 2639742

The present invention provides tooth whitening compositions in the form of a liquid crystal or a microemulsion that includes a tooth whitening agent in an amount effective to whiten teeth, a hydrophilic phase including water, a hydrophobic phase including at least one oil, at least one anionic, nonionic, amphoteric or zwitterionic surfactant, and a water soluble co-solvent having a Hildebrand solubility parameter above 12 (cal/cm3)1/2, as well as methods for whitening teeth including applying the liquid crystal or microemulsion composition to the teeth for a period of time and under conditions effective to whiten the teeth.

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