11 Ways to Get Prettier, Healthier Skin in Just 1 Week

Whether it's 2 a.m. and you just sauntered back into your apartment or you're dripping in post-workout sweat, don't forget to wash your face. "Sleeping with makeup is a no-no, and rinsing both before and after exercising is a must," said Dr. Shari Marchbein, the clinical assistant professor of dermatology at NYU School of Medicine. "This ensures that sweat, dirt, pollutants — anything and everything that can cause acne or skin aging — is rinsed off the skin to allow for healthy skin regeneration. If you are consistently keeping your skin clean without overstripping it, you will see improvements."

One of our favorite cleansers is Sunday Riley's Ceramic Slip Clay Cleanser ($45). It's made with French green clay and Rhassoul lava clay, and it's infused with vitamin C.