I use the Neutrogena Spray 45 especially on my back where I can't reach. I am amazed at how well it works. I just don't burn any more. I _do_ have a tan. I have pale freckly redhead skin. I use the Neutrogena lotions- a couple different ones, places I _can_ reach. 45 or 55. I am happy with that, too. I take the whole big spray bottle with me in my truck bag on the bike when I know I am going to be out all day. It's COLD when you spray it on- which is great when it's 95F.