There is no such thing as a standard whiteness of teeth the colour of tooth enamel varies from person to person sometimes even from tooth to tooth and may worsen due to a series of external or metabolic factors the daily and prolonged use of a specifically designed whitener that does not damage tooth enamel such as the blanx toothpaste may restore the natural whiteness of teethblanx classic whitening toothpaste natural whitening effect is due to the combination of a series of factorsthe l