Question: how do you use activated charcoal to whiten teeth?
Answer: Charcoal teeth whitening DIY If you'd like to try activated charcoal to whiten your teeth, you can purchase it as a powder or in capsules that you open. Mix with water to make a paste. You can also try sprinkling the charcoal onto your wet finger or toothbrush. Keep in mind that this technique may be hard to finesse.