So What is SPF Really? When using sunscreen, the most important thing you can do is use it correctly. Studies show that at least 25% of us either do not use enough sunscreen, or simply don’t apply it properly. To help consumers “gauge” a sunscreen’s effectiveness, a Swiss chemist named Franz Greiter introduced SPF (Sun …

This month’s blog about sunscreen safety is going to be a little different than usual. I normally pick a topic about sunscreen safety that’s in the news, but I think today, I want to talk about a group I encounter over and over in my research on sunscreen safety. First of all, I maintain this …