Subject: can the ingredients in deoderant cause breast cancer?

I am a high school student and I want to explore the question " can 
deoderant cause breast cancer?" My grandmother has told me that the 
aluminum in deoderant can lead to breast cancer in the long run. For this 
reason she uses baking soda as deoderant. I really want to use this 
question for my science fair project that is due in february, but i want 
to start finding out information now just in case i have to do an 
experiment. i want to pace myself. i couldn't find any other information 
elsewhere, so i am hoping that someone can answer my question.

Re: can the ingredients in deoderant cause breast cancer?