New Study Says Antibacterial Soap May Damage Muscles: Do You Use the Stuff?

According to a new study, published in the Proceedings of the National Academy of Sciences, triclosan—a common antibacterial substance—can result in muscle impairment in both humans and animals.

Triclosan was originally developed in the 1960s to prevent bacterial infections in hospitals. These days it is commonly found in hand soaps, toothpastes, mouthwashes, kitchen utensils, toys, and bedding. Many manufacturers add the ingredient in order to convince consumers that their product will kill harmful bacteria. However, the substance may actually do more harm than good.

“Triclosan is found in virtually everyone’s home and is pervasive in the environment,” said lead author Isaac Pessah. “These findings provide strong evidence that the chemical is of concern to both human and environmental health.”

With the potential risk of muscle impairment, including cardiac function, we may find ourselves switching over to conventional soap and water. And according to the FDA, there is little evidence that antibacterial soaps with triclosan end up killing germs any better than the traditional stuff.