http://www.thecrystal.com/product_information.cfm this is the crystal I use. I have seen this brand for men at the Right By Nature store but not anywhere else as I wanted to get that for my dh, although the crystal says it's for men and women and I don't know what the difference is. It's like $6.99 at Rite Aid and lasts for at least a year. I have tried Toms of Maine stick but that didn't stop odor and neither did a roll on crystal I tried. I have had no issues with the crystal, I love it and will always use it. I started using this deodorant and stopped wearing underwire bras after reading a lot about causes of breast cancer and other issues and after my friend telling me how she switched.
You can search on-line about the aluminum in antiperspirants and what harm they can cause (along with the underwire bras) Your body needs to sweat to rid itself of toxins, it's something natural, we choose not to stop that. Once I read all this it just made sense for me to change what I was doing. THe whole thing with chemicals in body/beauty products and toothpaste and such would be a whole different thread, I could go on forever on the subject.