@megmaefit: A viral mascara… I HAD to try M•A•CStack I personally wear light make-up to the gym every day and so it’s important it’s actually sweatproof! I put it to the test, and have to say it’s literally lasted all day! @maccosmetics #M#MACSTACKMASCARAB#BeautyTokV#VIRALPRODUCTT#TikTokMadeMeBuyItad