I'm trying (unsuccessfully) to find an unscented antiperspirant whose active ingredient doesn't contain aluminum. I want unscented antiperspirant, so I can wear colognes/aftershaves without the scent clashing with an antiperspirant. At the same time, aluminum-containing products trash my shirts. The armpits not only get stained, they get solid deposits that won't launder out and turn to rocks in the dryer (I know, too much information). Arm-and-Hammer has been suggested, but it contains aluminum. Any ideas and/or sources?