The present invention provides the use of composition a as an antimicrobial agent, wherein the composition comprises anethole, an anionic surfactant, and an orally acceptable vehicle, wherein the composition is free from additional flavor ingredients； and a method of increasing the resistance of a composition to microbial attack, the method comprising formulating the composition so as to comprise anethole, an anionic surfactant, and an orally acceptable vehicle, wherein the composition is free from additional flavor ingredients. The present invention also provides a method of making an oral care composition.
