As we've discussed before here on the CL Green site, there can be many chemicals in health and beauty products that can have adverse effects on both your health and the environment. Because these chemicals aren't inspected or regulated by the FDA, they can be found in the majority of personal care products on the market.
For instance, many deodorants contain aluminum, parabens, formaldehyde and triclosan which could have potential health risks. Some have said they are carcinogens and could lead to cancer (though The National Cancer Institute says the research is inconclusive).
This article appears in Jun 9-15, 2011.