When choosing a deodorant, it's important to look for ingredients that are effective and safe. Some of the most common ingredients in deodorants include aluminum zirconium tetrachlorohydrex gly, which helps to block sweat production, and triclosan, an antibacterial agent that helps to kill odor-causing bacteria. However, some people prefer to use natural deodorants, which are made without aluminum or triclosan. These deodorants typically contain ingredients such as baking soda, cornstarch, and essential oils.