No teeth sensitivity: No sensitivity after use. Teeth whitening: Get a Bianco Smile teeth whitening gel pen or charcoal powder. Plaque removal: Also aims to remove plaque and detoxify the mouth. Upgrade options: Or upgrade to receive two. Easy to use and travel with: Portable, easy and convenient to use. Aims to help with discolouration: Designed help to whiten discoloured teeth up to 14 shades lighter. | Bianco Smile Teeth Whitening Gel Pen or Charcoal Powder | Wowcher