http://www.copperwiki.org/index.php/Sunscreen
This article pretty much looks at all the angles possible about sunscreen, sun block and apparently their solution is
Use sun block rather than sunscreen. Sunblock lies ontop of the skin rather than getting absorbed by it.
Do not used micronised titanium products. Smaller particles of titanium tend to enter the skin and cause damage. Stick with the un-micronised stuff. Sunscreen and Sunblocks
Use broad spectrum sunblocks.
Eat for sun protection: load up on natural anti-oxidants in your diet. Include fresh berries, green tea, spirulina and as many other natural anti-oxidants as you can.
Cover up in the sun: the clothing, hats and glasses with afford lots of protection.
Use natural sunscreens like shea butter.
Use natural anti tanners like real lemon juice.



Quote Originally Posted by Kathi View Post
Moisturizer goes on first then sunscreen. Apply the sunscreen 20 minutes before going out in the sun.

Here's what Paula Begone author of "Don't go to the cosmetic counter without me" says about using sunscreens.

http://www.cosmeticscop.com/learn/sun.asp?ID=163

I also use Clinique Repairwear day, SPF 15. I use Neutrogena Ultra Sheer Dry Touch with helioplex for biking, hiking etc, on all exposed skin. When I'm out all day I reapply it every couple of hours.

Paula Begone, and research, says that sun exposure is the cause of wrinkles so it's important to protect yourself at all times.

I wish I had payed attention to my grandmother 45 years ago when I did all that unprotected sun tanning. Now I'm paying the price.