Just because you are uninformed about certain things doesn't mean everyone else is too. For example, driving on the highway could look dangerous to a person from the jungle, but it isn't to someone who knows what he's doing. Your comment is the same way. If I try or take something, it's because I have studied it reasonably. The things I named are not untested high-risk substances.

In fact, hair colors contain toxic harmful chemicals that even increase the risk of certain cancers. I do color my hair, but I don't like it, and I do it as little as necessary.

The highway is remarkably dangerous for even excellent drivers