I stretched mine out because I don't use it every day. I used it more in the beginning but now that my BC seems to be helping my acne I use it a lot less than I'm supposed to. I really only use it when I really start breaking out and then I'll use it for a few days to clear it up and then stop again.

I'm still on my first box. I have the second box under my sink that's never been opened. I should really look at the expiration date one day.