Health experts agree sunscreen is necessary, but instead of just considering the sun protection factor or SPF, you might want to consider the ingredients.
There is an ongoing debate about whether a common sunscreen ingredient, oxybenzone, could lead to health problems and even be linked to cancer.
The Environmental Working Group keeps an updated database on more than 1,000 sunscreens it has studied. It found four out of five contain chemicals that may pose health hazards or don't adequately protect skin from the sun's damaging rays
Dermatologist David McDaniel says while the studies so far are incomplete, oxybenzone does penetrate the skin.