Namely
Discovered in 1947, aluminum chlorohydrate has made the antiperspirants previously based on aluminum chloride, less irritating. Nevertheless, this aluminum salt is suspected to be an endocrine disruptor.
For the time being, no study proves any relationship between breast cancer in women and aluminum salt. However, it is known that this salt crosses the barriers of the skin, and then end up in different organs: for example in the brain and in particular the hippocampus. It is forbidden in organic.
In 2011, the Afssaps (now ANSM) proposed a restriction of the aluminum concentration to 2% in antiperspirants or deodorants. This recommendation has never been followed by Europe.
In addition Afssaps recommended not to use antiperspirants containing aluminum on damaged skin, freshly shaved or shaved for example.