Knowledge: No studies to date have confirmed there are any substantial adverse effects of aluminum that could contribute to breast cancer. Hair coloring on the other hand can result in allergic reactions or skin irritation

Conversation:
I am thinking about coloring my hair.
Why? Do you not like the current color? What colour are you thinking of changing it to?
I like it but I just want to try something different. Does it have any adverse effects?

Response: Hair coloring can cause allergic reactions or skin irritation