Composition

1. A non-aqueous dentifrice composition comprising a non-aqueous carrier wherein the carrier comprises: glycerin in an amount from 50% to 70% by weight of the composition; polyethylene glycol in an amount from 15 to 25% by weight of the composition; a thickening agent consisting of from 0.3% to 1.0% by weight of the composition of a carboxyvinyl polymer and from 5.0% to 15.0% by weight of the composition of a thickening colloidal hydrated silica; and a surfactant system consisting of a first surfactant which is a betaine in an amount from 0.05% to about 4% by weight of the composition and a second surfactant which is a taurate in an amount from 0.5% to 2% by weight of the composition.

2. A composition according to claim 1 wherein the taurate is sodium methyl cocyl taurate.

3. A composition according to claim 1 wherein the dentifrice additive comprises a bioactive glass.

4. A composition according to claim 3 wherein the bioactive glass includes about 45% by weight silicon dioxide, about 24.5% by weight sodium oxide, about 6% by weight phosphorus oxide, and about 24.5% by weight calcium oxide.

5. A composition according to claim 3 wherein the bioactive glass is present in an amount from 1 to 20% by weight of the composition.

6. A composition according to claim 1 comprising an oral care active agent selected from a fluoride source, a desensitizing agent, an anti-calculus agent, an anti-erosion agent, an antimicrobial agent, an anti-plaque agent, a whitening agent, an oral malodour agent or a mixture of at least two thereof.

7. A composition according to claim 6 wherein the fluoride source is sodium monofluorophosphate, stannous fluoride, or an amine fluoride in an amount to provide from 25 to 3500 pm of fluoride ions, preferably from 100 to 1500 ppm.