Share Nano Magic Teeth Whitening Kit is an innovative teeth cleaning product developed with the latest nano technology. Each nano particle in the interior nano capillary tube is much smaller than ten thousandth of a hair strand, and works fast to absorb the stains from the surface of teeth. It is most effective against stubborn teeth stains and plaque caused by smoking, coffee, tea and other food colourings. Teeth Whitening Application: DIY clean teeth, ideal for removing stubborn teeth stains and tartar. Especially suitable for brown teeth caused by cigarette, coffee, tea, juice, chewing areca-nut, and other food colorings. As gifts for promotion purpose, Personal Care, DIY Beauty Salon, Dental Clinic