Can Charcoal Teeth Whitening Harm Your Teeth?
Recently, the question came out about using activated charcoal to whiten your teeth. The tooth whitening market is huge; the over-the-counter teeth whitening industry is worth about a billion dollars a year. If charcoal was safe, effective and supported by research, then the big brands would have put it on the market and they haven’t.
How Charcoal Teeth Whitening Works