Those of you who were lucky enough to not need the full dermatologist treatment, but were not blessed with naturally clear skin, probably spent some time with Proactiv.

Proactiv doesn't seem to work for everyone (apparently, almost no acne treatment does), but there are those out there who swear by it. Previous over-the-counter acne medications were spot solutions, meant for dabbing on the offending zits rather than a long-term system. Proactiv changed the game, and even though there have been improvements since, many of the blemished still believe in the power of Proactiv.

A quick heads-up for would-be Proactiv customers, though: Many customers are happy with the product, but there are equal numbers of people embittered by terrible customer service experiences.