Does ProActive really work?

I have minor to moderate acne that I've been suffering from for years. I'm 14, a girl, and find acne to lower my self confidence. I feel self conscious whether i have no make up on or too much to cover up my zits. I'd like to, for once, be able to feel confident and look good without cover up, especially since I'm in sports that have rainy weather and cause me to sweat a lot. I finally talked my mom into ordering proactive so I was wondering, does it actually work?