I thought proactive was overpriced benzoyl peroxid that just burned the hell out of my skin. I would never use it again. Some of have good results though, I have sensitive skin so I didn't do good with it.
Proactive, and any other product with BP will stain clothing.
How bad was your acne? I've heard of great results for people who had moderate to severe acne. Luckily the worse I've had was a bit of congestion and random pimples. I just got the hell burned out of my face. Good to see that it worked for you though. You definately have tough skin.