What does the SPF in sunscreen stand for?

What does the SPF in sunscreen stand for? It could earn you $1,000! Listen to The Andie Summers Show's Minute To Win It  weekday mornings at 7:50: 10 Questions 60 Seconds Win $1,000 And we make it easy for you. 1 - If you follow The Andie Summers Show on Facebook and Instagram we give a daily sneak peek question! 2 - Any questions that are not answered or answered incorrectly will probably be among the next day's Minute To Win It questions - so it can pay to listen, literally! If you ever miss one, text MINUTE to 215-263-6700 and listen to the most recent contestant play, like ...