These tips on UV Rays were found by PJ who writes the
A Touch of Blushrs Blog
It is a big help having PJ on the look out for us as well.
Just a reminder really. I'll (try to!) make it short.
First of all,
Wear sunscreen EVERY DAY, regardless of the weather or whether you need to be outdoor for a long time. If you can see any daylight, UV rays are present and you need to use protection. I know it means you have to wear sunscreen every day for the rest of our lives, but it is human beings' fault in the first place to have ruined Nature's ability to shied UV rays. So we have only ourselves to blame.
Apart from proper UVB protection, which the SPF factor represents, UVA protection is equally important. UVB rays burn our skin and UVA rays cause wrinkles. (I remember them like this: UVB (B=Burning) and UVA (A=Aging).)
A sunscreen with proper UVA protection should have at least one of the following five ingredients:
Avobenzone (aka Parsol 1789 or butyl methoxydibenzoylmethane)
Do learn to check the ingredient list of the sunscreen product (or any skincare product, actually) you buy. If a sunscreen product does not have any of those ingredients, it is NOT something you should pay any money for.
(From Paula Begoun's website, Where you can find more comprehensive guide on sun protection)