If you’re a skincare lover, wearing sunscreen every day is probably as automatic as brushing your teeth (or it should be). SPF is the best way to protect your skin against the sun’s harmful rays that could cause skin cancer, the most commonly diagnosed cancer in the U.S. But it’s also key for preventing fine lines, wrinkles, and dark spots. But as you slather on your daily sunscreen , you might wonder what all the words on the bottle mean, like “100 percent mineral” and “physical sunscreen.” What we’re looking at here, folks, is the difference between mineral and chemical sunscreen. It’s actually all about the composition of the formula: Does an SPF rely on mineral blockers (zinc oxide and titanium dioxide) or chemical filters (usually oxybenzone, avobenzone, octisalate, octocrylene, homosalate, and octinoxate)? Mineral has largely earned a reputation as the better option, but is it really superior across the board? Not necessarily.…