Originally Posted by Stitch /img/forum/go_quote.gif I have Olay in spf 30 and sometimes I use Clinique super city block also 30. I use it at night and am not in the sun untill around 10 am or so. I hope the spf is still in working order by then. If I am really going to spend time outside I will put on a spf 60, samething my kids wear to the pool. I would doubt it would still be working.... whenever I do spend a full day outside, even with really high SPF's like 60, I have to apply in the morning and again after lunch to keep from getting sunburned! (And when I was on my Hawaiian honeymoon, I *still* got a little sunburned with that routine, even though I used the same waterproof sunscreen I used on the lake beach back home! I guess the sun's rays are just more direct and stronger there...)