For my lowest SPF protection, I reach for an ultra-lightweight spray that literally feels like nothing on the skin. This is my favourite product for re-application on the body after being out in the sun for a few hours, especially because the light mist is nice and refreshing. Also, this is the only product I'd recommend for use on the scalp. I can't be the only one who has gotten one of those painful scalp burns in the past! I'd sooner tell you to throw on a floppy sunhat, but this will do if you aren't a chapeau person.