@ittybittyzitty I don’t know if I’ve ever actually kept track of how long it takes me to use up a tube of mascara, especially since I use a lot of smaller/travel sizes tubes from GWP, promos, and in kits. I only rarely actually buy a tube of mascara, but my general rule of thumb is I throw it out when I can tell it’s dried out or the texture changes. Since I never have an issue applying my mascara, as soon as it starts giving me grief I know it’s time to toss it. If that make sense!
6m-1y tops. I tend to abide by the 6m guideline because having a performance/drama background I've seen some nasty infections because of old mascara. That being said, I also wear mascara often (near daily!) so it never lasts a year lol!