Want to get rid of even more pore-clogging residue? Alpha hydroxy acids are the dermatologist-approved way to get rid of dead skin cells, the main culprits behind unsightly blemishes. While harsh exfoliating scrubs can tear skin and worsen acne, AHAs unclog pores gently. Plus, studies show AHAs stimulate the production of new skin, meaning acne scars will improve, too. Try Dr. Dennis Gross Extra Strength Alpha Beta Peel ($35 for 10 packettes).