I had a weird experience with sweating after I started T because I'm attracted to men, especially the ones who smell "good" to me--read "compatible." So I loved the way I smelled, but if I stayed home all day and skipped the shower, I would start getting pretty whiff. Not so pleasant. And I was mindful that I didn't want other people to smell me even when I was clean.
I used to have pretty bad skin allergies pre-T, so I was using a bunch of antiperspirant and deodorant products for people with sensitive skin. I tried Dove and Tom's of Maine (deodorant only, I think) and Arm & Hammer and a couple of others. One--Arrid?--was pretty strong, but nothing really worked. When I wore t-shirts under my work shirts, the tees would develop yellow sweat stains in the underarm area. When I didn't wear t-shirts, my sport shirts would get horrendous residue on them. And I smelled WORSE, not better. The chemicals in my sweat just didn't mix with the chemicals in my antiperspirant/deodorant.
I finally figured that if I was going to sweat anyway--and sweating is normal--I might as well try something different. I went online and ordered a Thai crystal. I still had some perspiration, but I didn't smell like anything. In due course, I replaced it with another brand of crystal deodorant, with the same positive results. I'd always thought of these crystals as sort of new-age-y and unreliable, so I was rather shocked to find that they worked for me. I just roll the stick liberally under my arms right after a shower and once again before I put on a work shirt. I get no residue and no odor. (I don't know about sweat stains on my t-shirts because I stopped wearing them--I run extremely hot after starting T.)
I've read information here and there that people are concerned about the safety of these minerals, but what I'd been doing before couldn't have been particularly good for me--and those products weren't even working for me. So now I'm doing crystal...