I was surprised that it really didn't come off. I used to worry about my makeup coming off when I sweated profusely on the way to work. I'd never used a fix mist before, so I went to the store intending to buy MAC's regular fix mist, which Hiro Odagiri recommended on YouTube to prevent makeup from coming off. While talking with the beauty advisor, she recommended this matte type, so I bought it. Rather than spraying it directly on my face, I was taught to spray it onto a tissue and apply it to my T-zone like blotting paper, so I now use it after applying my makeup. Of course, I sweat, but it stayed on much better after using it than before, and my makeup remained matte and smooth for a long time. If I use it all over my face, it loses its shine, so I think it's best to use it on just a few spots. I think I'll get through the summer with this!