CHOICE tested aerosol spray sunscreen and found that only 40-60% is sunscreen. Our test also found that out of each spray (10 grams), only 4-6 grams actually end up on your skin. You can lose even more to overspray, especially if it’s windy or if you’re spraying a small area. However, consumers report that it’s a convenient way to apply sunscreen.
I was always attracted to the aerosol cans of Bullshit Repellant that were displayed prominently in our local pharmacy during the build-up to elections… it’s just that I don’t know whether to spray it on me, or other people!