30. but anything over 50 doesn t mean much. consumer reports tested a few dozen sunscreens and found nine they recommend. including banana boat sport performance, coppertone sport ultra and cvs fast cover. why not sit in the sun as long as you put good sunscreen on? there is no complete sun block there s no such thing as a sun block. the new regulations have eliminated the word sun block. sunscreen is part of an armament that we have, seeking shade, wearing protective clothing, sunglasses that help minimize sun damage. and skin cancer. reporter: but, what about the sprays that have become so popular? spray on more than you think you need. let it dry. spray it on again. don t breathe it in. it is always a good idea to cover up. hat and shirt, preferable. lisa stark, abc news, washington. some other points. some people think you need to spend money to get the best sunscreen.