Have you all tried the regime on acne.org? I have found that really works for me. You must be diligent though.
I saw results almost immediately. It's great stuff. It really worked fast because my oil production slowed down significantly. I don't remember the dosage but will try to find it.
I used to use this for my acne years ago. I really liked the effect and only stopped because I left Europe where it had been prescribed for me. Good luck. I hope it helps you like it did me.