Mervyn Elgart of the department of dermatology at George Washington University eloquently dismissed the rumour as “a bunch of crap.
” Other experts have expressed similar views, though not necessarily in those words. 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. This study did not show any increased risk for breast cancer in women who reported using an underarm antiperspirant or deodorant.
Although women who use razors on underarms and use deodorants within one hour of shave are susceptible to breast cancer and extensive research is required and underway.