With all of the busy merriment that happens during the holiday season, it’s easy to let your usual routines fall by the wayside — and that includes your skin care habits. Unfortunately, the holidays are also one of the most important times to be paying attention to your complexion, because there are plenty of skin mistakes to be made during all of the festivities.

For one, the air is already cold and dry, so you’ve got the weather going against your skin. Add on heavy holiday makeup, lax cleansing routines, winter fabrics, and a few cocktails and cookies (OK, maybe more than a few), and you’ve got the perfect storm to start making some sneaky skin mistakes. Chances are, you won’t even realize you’ve been making them until you notice your skin has a little less radiance than usual.