StyleWatchStar-Tested Beauty Tips & Tricks

FOREVER YOUNG

It's easy to keep skin flawless with one simple step: Slather on sunscreen. Rain or shine, "you can never skip this step!" says Dr. Allison F. Singer of the Dallas Center for Dermatology and Aesthetics. "Sunscreen is the number one most important step in anyone's skincare regimen," she says – and the best way to prevent wrinkles, skin cancers and brown spots. The simplest way to make sure you're always protected, especially if you are as fair as Julianne Moore? Choose a moisturizing cream with SPF 20 or higher for everyday wear.