effectively than similar products. How it does this is relatively straight forward. A quick science lesson: spots that appear on your face will usually have started life several weeks ago, when the skin cells surrounding a pore didn't shed properly, and blocked the pore in question, leading to a build up in bacteria and creating an airtight, warm environment in which bacteria can thrive. The Proactiv three-step system contains a cleanser containing tiny beads to help unblock pores, along with benzoyl peroxide to kill bacteria and boost the exfoliation process. The toner contains glycolic acid, which helps to unclog cells exfoliate the skin. The final product is the repairing lotion, which contains another dose of bacteria-killing benzoyl peroxide. So far so good, and, if the figures are anything to go by