Sun protection factor — better known as SPF — tells you how well a sunscreen protects your skin against ultraviolet B radiation, the type of UV rays that are most responsible for causing sunburns.

We've tested and reviewed products since 1936. Read CR's review of the Pure Sun Defense Disney Frozen Lotion SPF 50 sunscreen to find out if it's worth it.

Hand creams with SPF offer the best of both worlds: hydration for smooth, nourished hands and protective benefits to fight the effects of sun damage (which can help prevent dreaded sun spots). Adding ...

Quick: How many bottles of hand cream would you guess are within 20 feet of you at this very moment? There’s the travel-size tube stashed in your purse, the jumbo pump on the edge of the bathtub, the ...

The numbers that signal summer's approach are here: The countdown to the last day of school. A 90-degree forecast. And, of course, SPF 30. Or 50? Or maybe it's time to break out SPF 100? SPF stands ...