... for sunscreen!
As someone who burns very easily, and has a family history of skin cancer, and lots of freckles myself, I am a huge proponent of sunscreen. All the time. Every day.
However, I've learned that not all sunscreens are created equal. Avoid those with oxybenzone, opting instead for titanium or zinc oxide. Be careful of nano-particles too, as their effects are still in question.
One of my very favorite organizations, the Environmental Working Group, has come through again with their best sunscreen guide. I strongly recommend you check it out before buying!