My specialist then cleansed my skin before bringing out the main event: The Perk Hydrating Facial, a device which features two rollerball pens that are filled with serum. As you roll them over your skin, the device sucks away debris and oil while simultaneously pushing serum into the skin. She used a lactic acid-based serum first to loosen any dead skin cells, then switched it out for a Vitamin C serum to brighten my skin, especially around my eyes. At the end, she showed me a jar full of the excess serum, oil, debris, and dead skin. (Check out my special cocktail above.)