Have you been protecting yourself against sun exposure? When selecting a sunscreen, go for the “broad spectrum” protection. Sunscreens with this label protect against both UVA and UVB rays. Make sure your sunscreen has a sun protection factor of 30 or higher. The SPF number is the level of protection the sunscreen provides against harmful rays. Higher SPF numbers do mean more protection, but the higher you go, the smaller the difference becomes. Secondly, look at the ingredients. Physical blockers (titanium dioxide, zinc oxide) provide the best protection and cause less skin irritation than chemical sunscreens.