Activated Charcoal Teeth Whitening. Charcoal for teeth whitening? Seems counterintuitive but it works, and is much less damaging to teeth over the long-term than hydrogen peroxide can be (if used improperly).
How to Whiten Teeth With Hydrogen Peroxide. It can be expensive and time consuming to have your teeth professionally whitened. You can avoid the hassle and expense by whitening your teeth at home using hydrogen peroxide.