11 Ways to Get Prettier, Healthier Skin in Just 1 Week

"A little bit of sun damage goes a long way," said Weisman. "It only takes 15 minutes to induce inflammation and trigger a melanin response in your skin. Translation? Dark spots and collagen degradation — AKA wrinkles — and it shows fast, especially as you get older."

Throw on a floppy hat, wear long sleeves, apply sunscreen consistently (even in the Winter), and stay in the shade when you can. Keep sunscreen handy — in your purse, on the entry table, in your car — to make it easier. A tried-and-true fave is Neutrogena Ultra Sheer Sunscreen Lotion ($7).