1. Can antiperspirants or deodorants cause breast cancer?
Articles in the press and on the Internet have warned that
underarm antiperspirants or deodorants cause breast cancer. The
reports have suggested that these products contain harmful
substances, which can be absorbed through the skin or enter the
body through nicks caused by shaving. Some scientists have also
proposed that certain ingredients in underarm antiperspirants or
deodorants may be related to breast cancer because they are
applied frequently to an area next to the breast. However,
researchers at the National Cancer Institute (NCI) are not aware
of any conclusive evidence linking the use of underarm
antiperspirants or deodorants and the subsequent development of
breast cancer. The U.S. Food and Drug Administration, which
regulates food, cosmetics, medicines, and medical devices, also
does not have any evidence or research data that ingredients in
underarm antiperspirants or deodorants cause cancer. 2. What
have scientists learned about the relat