Blackheads are just pimples that don’t have skin over them. That’s all they are. Because there’s no skin, and they’re exposed to the air, the top layer of gunk in your pores oxidizes and turns that darkish black color.source
If you’re prone to blackheads, I have some good and bad news for you. The bad news is, large pores and oily skin are going to be a fact of life for you. The likelihood that you’ll be able to totally reverse either of those things is nil.