I'm fair skinned, but I tan and it's very hard for me to get a burn and if I do, unless it's like bubbling, blistering 2nd degree burns from being in direct sun, on the water, for 15 hours straight, it turns into a tan sometime in the next 32 or so hours. I know I should try to prevent skin cancer, but there's no history of it in my family and my dermatologist said I'm low-risk. I will put on some first thing before I head out to WDW in the morning, but if I forget (I hate the way sunscreen feels in my hair - I use the spray stuff. I despise that lotion stuff.) I don't worry about it. I don't wear it hiking or working in the yard. I do always put it on if I'm going on a boat for any length of time, because why risk a burn, but that's about it.