Aluminum is great for a beer can but you don’t need it in your deodorant and many deodorants contain aluminum for its antiperspirant properties. It is a harmful ingredient. It doesn’t seem harmful but consider how long you’ve used deodorant and how long you are going to use deodorant. 20, 40, 60 years or more? To me, that’s like taking small amounts of poison that doesn’t bother you-until the amount builds up in your body and is harmful. Thai deodorant stone is made of natural minerals (not aluminum) that kill and control the odor causing bacteria. This brand comes in a stick, a roll-on and a spray so you can have your favorite applicator.