Black is White toothpaste is a natural product containing activated carbon without the use of abrasion or chemical bleaching. The carbon helps to absorb the stains gently removing them without ruining your enamel! As you’ll see in the picture, there are tiny blue particles (Prestige Sparkling Blue) in the toothpaste- these act as an optical illusion in making your teeth appear whiter but counteracting the yellow in discoloured teeth. Starphere is used as cooling agent to give you a super fresh feeling long after brushing.
The black tubed toothpaste is lime flavoured, this seems like an odd choice, but saying that makes a nice change to your usual bog standard mint. I wasn’t 100% sure on the taste, but after a couple of days I got used to it. I guess it just tastes weird because you always have mint. The white tube is extra mild so much less offensive on the ol’ tastebuds. Both leave your mouth feel lovely and fresh and its a bit of a novelty to have the black toothpaste.