Participating in the world of consumption requires relentless attention to surfaces—since surfaces are what consumer goods, from whitening toothpaste to remote-controlled lawnmowers, can change.

If you don't want to use bleach, try a whitening toothpaste, which also acts as a mild abrasive.

Whitening toothpaste and mouthwash sales rose by more than ten per cent.

Whitening toothpaste can not alter the natural color of teeth or reverse discoloration by penetrating surface stains or decay.

I've tried using recommended whitening toothpastes but there's no improvement.