I found some stuff called Klear Action at Target (also Walgreens) and it seems to be exactly like Proactiv. It might actually work better, for me. I highly endorse it. $19.99 for the three piece system. And you can just go to the store and pick some up when you run out.

I think Proactiv did change, btw, it doesn't work as well for me as it used to, and I noticed it to be less grainy.