During the day, you know what it takes to keep your skin looking youthful: sunscreen, sunscreen and more sunscreen. (Experts recommend using one with an SPF of at least 15 every day of the year.) But what you may not know is that there are things you can do at night to look younger, to make your skin glow and to actually repair your skin.

Stubborn fine lines, enlarged pores and even puffy, tired eyes can be erased (or reduced) by morning if you take the proper steps at night, says Monique Klein, owner of Monique K. Skin Care Boutique. And if your complexion is already practically perfect, nighttime is the right time to indulge in some preventive care.

• Always thoroughly wash your face before you go to bed. Never hit the pillow without removing the day's grime as well as sunscreen and other products from your skin.
• To look younger, apply a quick-drying mask twice a week. If you want to tighten your pores, Monique recommends using an exfoliator like Aveda's Deep Cleansing Herbal Clay Masque. For dry skin, she suggests Aveda's Intensive Hydrating Masque. Let the mask sit for 10 minutes or until it's dry, and then gently remove it with warm water and a washcloth.