If you’re like most people, you usually don’t step out into the blazing-hot sun unless you’ve slapped on a good amount of spray or lotion to ward off the cancer-causing UV rays that bombard us when we go outside. And for many among us, this isn’t simply a case of slathering on sunscreen when we head to the beach or to an outdoor all-day picnic—no, we need the stuff daily for our day at work, school, or simple outdoor recreation.