I really like proactiv. I tried five million different things to clear my acne and it was the only thing that worked! It's a bit expensive in the beginning, but I found once it started working and helped clear my face I could use less and less of it.. Now I don't use it at all and can use every day cleansers to keep my skin clear.
Well, my face felt cleaner and less oily immediately. My acne started to improve dramatically withing two weeks. After that, it kind of just evened out, but now it is working well again. But, I don't use it faithfully like I should. If I did, I would be even happier with the results. But, I did buy the proactiv mask off of ebay. It is a sulfur mask that klear action does not offer. I bought it for like $3.00 off of ebay which is a lot cheaper then through the company. It, combined with klear action makes an even bigger difference. Maybe you should try that. Good luck.