I recently bought a crystal deodorant (not this brand but it's the only link I could find). I can't figure out if it works. It certainly doesn't feel as if it's doing anything - in fact it doesn't feel as if anything goes onto my skin. The crystal stick feels like plastic. You're supposed to wet it before applying, which I do, but it doesn't seem to make any difference. There is no smell, in fact no sensation at all.
Now that I'm doing my walk-run program (week two and going fine), I haven't felt able to risk trying it out under conditions of heavy exercise. Maybe I will on the weekend, when I can go straight home and shower if I've broken through the odour barrier.
Before crystal, I was using a Body Shop men's deodorant. The men's was the only one they make that doesn't use aluminium. How come they don't make one for women like that? Not that the men/women label would normally matter to me, but this one has that "for men" perfume which I don't particularly like but which is pretty strong. I imagine all the other mothers at the school wonder why I smell like their husbands.
Before Body Shop I was using a Nivea unperfumed and non-alcohol deodorant, which I liked a lot. Except it had aluminium in it. I know they're contentious, but I've read the aluminium=breast cancer risk articles and just to be on the safe side, I want a non-aluminium deodorant, for those times I wear one (which is about half the week).