When you are looking for a sunscreen, make sure to look for the following...
A product with an SPF of 15 or higher
UVA and UVB Protection printed on the bottle
A Seal Of Recommendation from the Skin Cancer Froundation or a stamp of approval from the American Cancer Society on packaging.
Both groups are now recognizing products that do a first class job of protecting your skin!
I, myself, use SPF 45...I am very pale, and the sun doesn't like me anymore! LOL