Charcoal is one of the most powerful natural bleaching agents in the world and especially one of the oldest. Traces of the use of this rock can be found as far back as 30,000 years BC. It was already used at the time as a natural absorbent, anti-bacterial or anti-fungal. It also has detoxifying and deodorizing properties that help to fight bad breath. Here it is its natural and healthy whitening property for the human body and the environment that is highlighted.