It worked. I've been using it for three months, and it's removed the tartar. The enamel is also slowly, but definitely, restoring. It's no good for whitening. Like others, I have also noticed some increased sensitivity and tooth pain, but nothing serious at this point. The big negative is the cost. At $80 (AUD) per month's supply, it's out of reach for most people. My advice: use it to fix the problem (restore enamel/remove tartar), then switch to something else with a good reputation (a German brand comes to mind) that uses a different active ingredient and is affordable, and use Livfresh occasionally.
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