But to answer your question, women always wanted and still want to look prettier and more attractive, even if they may risk damaging their health.
Ever heard "beauty requires sacrifice"?
To some degree similar thing is about the guys, who get injuries when working out or sometimes even muscle overload and failure. And don't believe anyone who says they wanna get ripped for themselves - the main reason is to attract the ladies!
What products are you talking about specifically? Everything extra women do is damaging something. Hi-lights and dye is damaging to your hair, Nail polish is damaging to your nails, etc. Even eyeliner could be dangerous if you were applying it and someone scares you, and you poke your eyeball haha