I have been drinking ACV (a couple TBS diluted in water) a few times a day for about 10 days. I am hoping to alkalize my body and lose weight. I haven't seen any weight loss yet but I have noticed that my complexion is clearer and the enlarged pores on my nose are getting smaller. In fact, today I noticed that the little bits of solidified oil that previously sat inside the pores were all sticking out of my skin. My nose looked a little like a porcupine. So I kind of scraped the tiny oily "sticks" off. It was like my pores had just expelled their contents on their own. After I cleaned all that stuff away, I could see that my pores were noticeably smaller than they had been in decades (I am 42). It was not something I was trying to do or an effect that I was looking for, so you know it had to be pretty real and dramatic for me to notice this anyway.
I would not bother to put ACV on my face. It's acidic until you metabolize it and then it has positive effects. Not sure I want to put acid on my face. But the alkalizing effects of having it course throughout your system once you digest it definitely affect and improve your skin.