I've said this on a past thread but I switched to a natural deoderant/non antiperspirant (Wild) several years ago because I felt like I wasn't really sweating but I was really *smelly* in the evenings and my shirts smelled of sweat when I ironed them. I felt a bit weird about using aluminium daily as a woman too, especially as it didn't seem to be helping me!
I am definitely less smelly now than I was when I used strong antiperspirant every day. It's a more natural sweat smell rather than the kind of foul smell I now associate with anti-perspirant.
I have also switched to bar soap for my underarms as shower gel wasn't cleaning thoroughly enough.
A great backup to the natural deo, particularly in the summer, is to use Pixi Glow Tonic or similar before it (and let it dry), to gently exfoliate the underarms, remove any residual deo and kill the odour-causing bacteria that can still hang around after a shower.
The switch to deoderant instead of antiperspirant is a bit icky at first as it takes a few days for your body to adjust but I'm glad I pushed through and I've never looked back.