Proactiv Dark Spot Corrector

I have been using this corrector for seven days now and I really like it. It says it could take up to three months to see a difference but I am seeing one after only seven days! I see a noticeable difference in the appearance of my post acne scars and marks, they look lighter and theres not as much. The only downfall I find in this corrector is the smell. It smells like chemicals but hey, thats what it is!