I get asked three questions all of the time. What sunscreen should I buy? What SPF should I use? Are sunscreens safe? Before I address these questions, a little background on sunscreens will be helpful. There are two types of sunscreens, chemical blockers and physical blockers. Chemical blockers absorb UV radiation and then become inactive. Physical blockers (zinc oxide and titanium dioxide) reflect and scatter the UV radiation before it gets to your skin. There are pros and cons to each … [Read more...] about Answering Questions About Sunscreen