Activated charcoal toothpaste advertised as having the ability to whiten teeth actually may increase the risk of tooth decay and dullness, according to UK dentists.
The study, published in British Dental Journal, says that products from activated carbon are becoming increasingly popular, often without fluoride to help protect teeth. According to the researchers, there is no scientific evidence to prove the claims made by the manufacturer. Even excessive brushing with this cream can be harmful because activated carbon toothpaste is more abrasive than regular toothpaste , potentially endangering tooth enamel and gums.
Activated carbon toothpaste is widely advertised as "anti-bacterial" or "anti-fungal", and has helped "whiten teeth" and will "reduce tooth decay". The types of activated carbon present in toothpaste today are usually a processed form of fine coal powder. Coal can be made from materials including seed pods, coconut shells, bamboo and peat, and can be wood and coal.
However, not only British dentists have recently, but the 2017 US reviews of 50 products have proven that these ads are not scientifically based.
The advice is that people should go to the dentist for advice on bleaching, or whitening. And to protect your teeth it is better to use regular fluoride toothpaste.