Air pollution has increased 8 percent over the last five years—and it takes a toll on your complexion. Daily exposure to smog, cigarette smoke, and car exhaust damage the skin’s barrier, leading to oxidative stress and premature skin aging. This is why pollution-fighting skincare products are a must! In the morning, spritz on REN Flash Defence Anti-Pollution Mist. It forms an invisible barrier, shielding skin from toxic air.