How safe is the aluminum in antiperspirant?

A few years back, I read that aluminum was a dangerous element to absorb. I read that it was linked to loss of memory and possibly some diseases affecting the brain. While in my local Whole Foods Market shortly after, I purchased my first ever aluminum-free deodorant. I can’t remember the brand, but I hadn’t heard of it before, and the scent was lemon based. When I got home, I tucked my “clinical strength” clicky deodorant/antiperspirant away in the linen closet. I tried out my new deodorant for a little over a week, and was confident that, had I been in a library in San Luis Obispo County, California, that I’d be kicked out. Afterall, it’s prohibited in the code of conduct to infringe on others’ rights to use the libray with offensive B.O. (body odor). more