Teeth-whitening treatments can erase telltale stains created by drinking red wine or snacking on coals stolen from Christmas stockings. Hide evidence of discoloration with today’s Groupon: for $37, you get an at-home teeth-whitening kit from Canadian Pearl Teeth Whitening (a $149 value, including shipping). The teeth-whitening kit contains the following:

• Eight pre-treatment Vitamin E swabs
• Eight intensive whitening treatments
• Two Thermoform trays
• One instruction insert
  
  

Canadian Pearl Teeth Whitening outfits sullied incisors with at-home teeth-whitening designed to lighten chompers up to eight shades. An octet of pre-treatment Vitamin E swabs helps moisturize lips and skin to minimize irritation, rendering kissers as smooth and hydrated as a freshly shaved glass of water. Once tooth caves have been sufficiently primed, mouth-bound Thermoform trays are loaded up with a water-based hydrogen peroxide gel that oxidizes discolored proteins in the enamel and dentin layers to whiten languid grins. In the privacy of domestic surrounds, tusk-blanchers can putter around their abodes or take in a televised extreme flossing cage-match as the gel’s stain-scrubbing might obliterates common stains including those from coffee and tea. The treatment causes virtually no sensitivity for those with healthy teeth and gums.