Balances Oral Environment: Whitening Tooth Powder adds probiotics to inhibit and reduce dental plaque, balance oral flora and improve bad breath. Whitening Technology: Our advanced optical whitening technology neutralizes dark tooth surfaces, giving your teeth a brighter, whiter appearance. The tooth powder turns purple when dipped in water, and the purple color neutralizes the yellow color, making your teeth brighter and whiter. All colors can be rinsed off with water during use, please rinse your mouth with water immediately after brushing! Fresh Breath: Naturally extracted plant menthol and mint flavor provide a refreshing taste that soothes gums and offers a gentle, non-irritating freshness. Whitening Teeth:Reduce stains on the surface of teeth and show the charm of a white smile. Fresh BreathBring lasting freshness and improve oral comfort.