Coffee, smoking, sodas and certain foods all play a major role in staining the enamel, resulting in discolored teeth.  Want to correct it?  Use this whitening tooth powder with a cool breeze of mintiness!!  Helps with gingivitis, bleeding gums, that monster breath, mouth and gum tissue, plaque build up, yellowing teeth and much more!!  May or may not cause sensitivity in some.  I recommend using in conjunction with the Miracle Swish Oil for best results.