I have naturally straight (and stubborn lashes), so mascara has been a difficult product for years. Even mascara from top American makeup companies would have my lashes straight down after about an hour, making it look like I barely had lashes at all! You can imagine I've gone through my fair share of different mascaras over the years, always looking for one that would finally work. And this one has been more than perfect! I applied it at 7 in the morning, it's 5pm and my lashes still look as curled as when I applied it! The mascara also hasn't run down from my lower lashes and made me look like a raccoon either. This is a must have for people with straight lashes!