No matter the weather, you should probably be including some SPF in your morning routine. "At least a 15," says Dr. Craig Austin, a New York dermatologist with a summer outpost in the Hamptons. "But the lighter your skin—or the longer you'll be out in the sun—the higher your SPF should be." Here, the doc shares everything you'll need to know about the broad-spectrum skin savers.
UVA = Penetrates the ozone easily and can penetrate deeper into the skin causing winkles.
UVB = Short-wave rays responsible for the sun burn, but they're also the cause of skin cancer.
How Do They Work?
The "sun protection factor" (SPF) is a rating indicating how long you can be in the sun before burning. So if after 10 minutes you start feeling the burn, an SPF 15 will protect you for 150 minutes.
The amount of sunblock needed to cover your entire body—a shot glass size.
Will Ferrell endorses a charity sunscreen ($12) that benefits college-bound cancer survivors.
The Best For:
Everyday: The non-greasy moisturizer locks in moisture but blocks the rays.