The minimum acceptable SPF is 15 and many doctors routinely recommend SPF 30 to effectively protect the skin from damage. Look for sunscreen with moisturizersto help condition skin while it protects. Broad brimmed hats and sunglasses are as important as sun protection as they are fashionable. Avoid the sun between 10 a.m. and 3 p.m . when the sun's UV rays are strongest. Don't be fooled by cloudy skies.
Harmful rays pass through clouds.
UV radiation also can pass through water. Using Sunscreens Effectively Sunscreen should be applied 30 minutes before sun exposure. Don t skimp, use a handful every time you put it on. If you aren t perspiring, it s best to reapply it every two hours. If you perspire heavily, reapply every forty minutes.