Dr Levy Pollution Shield 5PFConsidered as dangerous for your skin as UV rays, pollution is really damaging to your complexion and causes a breakdown in collagen along with the impairment of your skin barrier function. Building on over a decade of research and the testing of 59 formulas, Dr Levy launched the worlds first all in one full spectrum anti pollution filter. Inspired by sunscreen, this protective product is used as the last step of your skincare routine after your SPF,