Is it possible to live the dream ‘village life’ in the city?
It is now… How does teeth whitening work? Teeth are made up of an inner dentin layer and a harder outer enamel layer.
Enamel is mostly translucent, so despite it being on the outside, it’s largely dentin that determines the colour of your teeth.
Teeth whitening products generally whiten teeth using one of two active ingredients – hydrogen peroxide or carbamide peroxide – which penetrate the porous enamel and lighten the colour of the dentin by breaking down the stains. This explains why toothpaste alone can’t get rid of those stubborn coffee stains.