The Cancer-Antiperspirant 'Myth' (breast cancer, aluminum, & shaving) [View All]

If you've checked out the back of your antiperspirant lately, you might have noticed something different: new labels required by the Food and Drug Administration. They point out that antiperspirants are "drugs" containing "aluminum" ingredients — that's what stops the sweat.

The aluminum is also what concerns some people, including Dr. Kris McGrath.

"I personally feel there is a very strong correlation between the underarm hygiene habits and breast cancer," McGrath tells CBS News correspondent Sharyl Attkisson.

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But it didn't take into account how often a woman shaved and used antiperspirant, which McGrath considered crucial. So he did his own study of breast cancer patients and found this: The more these women shaved and used antiperspirants, the sooner they got breast cancer.