My family tried that spray stuff (SPF45), but it just didn't work the same (can you say sunburn?) as regular lotion. I used to wear my hair fairly short, and I would just rub sunscreen through my entire scalp. It worked, and it looked like I had gel in my hair. Now I don't have to worry about that. Applying sunscreen is quick and easy on a smooth scalp. My recommendation... shave it all off, and use a good sunscreen.