It May Smell Nice, But Is Your Sunscreen Actually Protecting You?

The most popular sunscreens may not always be the most effective, a new study finds. Nearly half of the sunscreens that researchers looked at in the study didn't meet all of the guidelines recommended by the American Academy of Dermatology (AAD). But these criteria don't appear to play a major role in people's choices when they buy sunscreen, according to the study, led by Dr. Steve Xu, a dermatology resident at Northwestern University Feinberg School of Medicine in Chicago.