'Tis the season for holiday parties, softly falling snow... and dry skin, chapped lips and cracked heels. It's winter, and that means it's time to change up the way you take care of your skin in order to ensure it stays properly moisturized from head to toe. Who better than to give advice on how to update your skin care routine this season than the people who take care of skin for a living? Here, 12 top dermatologists share the one winter skin care product they can't live without, from super-hydrating moisturizers to ultra-rich hand creams.

It's happened to us all: You're at dinner with your family and/or friends, your steaming hot, delicious food arrives and immediately you dig in... completely forgetting that you applied your favorite lipstick before dinner. And it's all business as usual until you have to take a bathroom break and realize that the color's smudged everywhere. And that, friends, is why it's important to always make sure your lipstick is 100% dinner-proof.

When it comes to messy buns, the ladies are aiming high. We mean that literally. The low, hideaway bun is on its way out because the working girl's new go-to look is the dramatic updo. From big knots to "Penny Dreadful" hair, they are doing it all.

Whatever the shape, shade and thickness of your brows and no matter how klutzy you believe you are with a pencil or brush, believe us: You can achieve fabulous brows. It just takes a little practice and finesse — and the extra work is totally worth it, since perfected brows can transform any face in an instant, framing the eyes and giving you a well-groomed look. So, ready for some tips? Here's how to get them right every time.

Like all great things, retinol can be polarizing: On one hand, people hype it up for its ability to help keep your skin looking bouncy, radiant and free of blemishes. On the other, many people have reactions to the ingredient — it's been known to cause irritation, dryness and even peeling.