Dermatologists reveal the foods that cause acne breakouts, trigger rosacea, and other skin conditions and how to achieve healthy-looking skin.

Dermatologists reveal the acne-fighting ingredients you should add to your skin care routine, from glycolic acid to witch hazel.

Lips have especially thin and sensitive skin, so they're one area you should pay extra special attention to when it comes to sun. And that doesn't mean slathering your sunblock on your pout until you look like you just kissed a lifeguard on the nose. Plenty of beloved lip balms now use SPF in their formulas. Ahead, the best—and most glamorous—ways to protect your lips all year long.