Charcoal Teeth Whitening Powder
Whiten your teeth with 100% Natural Charcoal Powder by using activated charcoal once daily, three days in a row. For more deeply stained teeth, brush with activated charcoal five days in a row. Wait a few weeks before repeating.
One teaspoon of activated charcoal has the surface area of about 10,000 square feet. (source) This makes it highly absorbent, which means it can also pull out stains, bacteria, and toxins from our mouths.