Negative ions? Toothpaste-less brushing? It might sound like something out of the back pages of a comic book, but the ION-Sei’s unique plaque-removing, bacteria-repelling tech seems to do the trick. You’re paying for the tech though, as other fancy features like multiple modes, Bluetooth connectivity, and pressure sensitivity are all absent. Innovative negative ion tech for reducing plaqueAvailable in a generous selection of attractive coloursSuperb, durable bristles Requires a leap of faithNo pressure sensitivity
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