I researched this up lots about 1.5 years ago when that big scare was going around about something called “Beds” that is included in the majority of aerosol spray cans. Carcinogenic or poisonous or something like that that, all the Producers assured us they are NOT harmful, then quietly dropped them for the ingredients! Was surreal watching that play itself out over 3-4 months in the press.

I decided I did not want to stop my body from doing its job of trying to remove toxins from itself, which is what anti-perspirants do, irrespective of any toxic gunk that is included.
Now I use a “crystal stick” which is made of mineral salts and ammonium alum. I use this maybe once/twice per month if I get a bit wiffy.