If you’ve perused the sunscreen aisle — and hopefully you have at this point in the summer! — you’ve seen the selection of SPFs available. There’s everything from SPF 15 to SPF 100 and beyond. It can ...

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.

This article was medically reviewed by Heather Woolery-Lloyd, MD, a board-certified dermatologist and member of the Prevention Medical Review Board, on April 30, 2019. You know you need to apply ...

So should you ditch your trusty SPF 30 for the newer, higher version? And will it really make that much of a difference to your skin over time? Here's what an expert thinks. The rule of thumb is that ...

The difference between SPF 50 and SPF 100 is bigger than you think.

Everyone has that friend who compulsively applies the highest SPF they can find on anytime they step outside. While you can’t fault them for practicing sun safety, it’s normal to wonder if wearing SPF ...