A large study in 2002 looked for links between antiperspirant use and breast cancer in 1,500 women. The researchers found that neither antiperspirants nor deodorants increased breast cancer risk. The results also showed no increased breast cancer risk for women who reported using a blade (nonelectric) razor and an underarm antiperspirant or deodorant, or for women who reported using an underarm antiperspirant or deodorant within 1 hour of shaving with a blade razor.
In 2006, researchers examined antiperspirant use and other factors among 54 women with breast cancer and 50 women without breast cancer. The study found no association between antiperspirant use and the risk of breast cancer; however, family history and the use of oral contraceptives were associated with an increased risk of breast cancer.
Another study found traces of parabens, a chemical found in some deodorants, in some breast tumours. Parabens is similar to oestrogen, the human hormone that can promote breast cancer development at high levels. But finding parabens in tumours is a far cry from saying that it causes breast cancer. In fact, breast tumours have large blood supplies and are likely to have traces of everything in our bloodstream. And more than 90% of modern deodorants are parabens-free anyway!
Because studies of antiperspirants and deodorants and breast cancer have provided conflicting results, additional research is needed to investigate this relationship and other factors that may be involved.
Sources:
In 2006, researchers examined antiperspirant use and other factors among 54 women with breast cancer and 50 women without breast cancer. The study found no association between antiperspirant use and the risk of breast cancer; however, family history and the use of oral contraceptives were associated with an increased risk of breast cancer.
Another study found traces of parabens, a chemical found in some deodorants, in some breast tumours. Parabens is similar to oestrogen, the human hormone that can promote breast cancer development at high levels. But finding parabens in tumours is a far cry from saying that it causes breast cancer. In fact, breast tumours have large blood supplies and are likely to have traces of everything in our bloodstream. And more than 90% of modern deodorants are parabens-free anyway!
Because studies of antiperspirants and deodorants and breast cancer have provided conflicting results, additional research is needed to investigate this relationship and other factors that may be involved.
Sources:
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