What products and method work best to remove acne dark spots?

I've been using Proactiv for the last two months. As an acne deterrent, I'd give it about a 5. I'm sure I'll begin using something else just as soon as I can find a better alternative. However, I have a much larger burden. Acne dark spots. In no way has it assisted in gradually clearing these up. I'm using sunscreen and all it seems to do is clog my pores (btw, is there a such thing as a non-comedogenic sunblock?) and I guess not make the spots darker, but what I need also is something to help weaken their appearance until they are completely gone. I'm aware that since I am African American this could take a couple of weeks or months. I've invested in something that is not working, so I'd prefer a new skincare regimen. Any clue? Thanks.