What I should be looking for, however, is UVA and UVB protection. Not all sunscreens contain both, which explains why I'm still a freckle-farm, despite years of religious sunscreen use.

Did you know that sunburns and aging effects are caused by two different types of rays? I didn't, til today. You want protection from both types, by the way.

Sunscreens have a shelf life, which means that you need to throw away all those half-used bottles in the linen closet.