The problem with deodorants and antiperspirants is not only the aluminum, but how it works to reduce sweat and smelly odors. Aluminum reduces sweat and odor by clogging the pores and glands and locking sweat and odor into the body. This clogging process is also responsible for blocking toxins from being naturally released from our bodies..
Aluminum compounds or aluminum salts, such as aluminum oxide (Al2O3), are key ingredients in almost every antiperspirant. They are powerful astringents that close pores, stopping sweat and odor from escaping the body.
Antiperspirants may leave the outside of the body smelling fresh and clean – but inside, the toxins that would have escaped the body in the sweat have nowhere to go. For this reason, antiperspirants have been linked to problems with the sweat glands and lymph glands in and around the underarms.
Despite arguments that aluminum exposure is unavoidable in air, food, and water sources, many doctors and holistic experts advise avoiding products known to contain additional aluminum – especially deodorants or antiperspirants that are applied to some of our bodies most vital glands which are in the pits of our arms.
There are some good natural aluminum free deodorants on the market that will not clog your pores and glands in this way. The natural products are effective, but they will never be quite as strong as the aluminum based products. I suggest that some people may need to apply a second application later in the day. But, applying a second application is far better than the risk associated with aluminum based deodorants

