SPF. Sun Protection Factor. Three pretty small words, but they hold a lot of power. This little bit of information is listed on countless bottles of sunscreen on thousands of drugstore shelves all over the world. This information can help prevent sun damage and skin cancer when used properly.
But how do any of us know how to use it properly? If you're out there scanning the backs of bottles and still confused, take this quick quiz to gauge your understanding of SPF.
Answer True or False to the following questions: