Women have been alerted to concerns that certain ingredients in under arm deodorant may be a cause of breast cancer.

The new study does not prove that personal care products cause breast cancer. But “the fact that parabens were present in so many of the breast tissue samples does justify further investigation,” said Philippa Darbre, PhD, of University of Reading in the U.K., in a news release.

“Although the environmental exposure to parabens as a cause of breast cancer is a possibility, there is no conclusive data thus far to state this as fact,” says Katherine B. Lee, MD, in an email. She is a breast specialist at the Cleveland Clinic Breast Center in Ohio. “The study suggests that if there is a relationship between parabens and breast cancer, it may be a complex one.”

While there is no direct link between deodorant and breast cancer, eliminating toxic exposure would benefit your health.