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.