Can taking prenatal vitamins help reduce female ovary problems?

Cy
I know some girls, who are not pregnant or trying to get pregnant, taking prenatal vitamins to help "regulate their period", "grow/strengthen their hair" or "reduce problems with their ovaries". I don't know all that is in prenatal vitamins but I'm curious to know does it really help? Is it worth taking or should I just take regular vitamins that aid my female problems? Does anyone else do this and it has worked for you?