My lashes are sparse, thin, have an average length and stick straight. I expect mascara to hold a curl and that's why I prefer the waterproof versions. I got this just to have a washable mascara so I knew that it would weight down my curled eyelashes. Nevertheless, they didn't look so bad. It gave my eyelashes a lot of volume and length with minimal clumping. The formula is kind of sticky but it didn't smudge (even in humid weather). It was very easy to remove. I highly recommend this mascara, I can it being wonderful on those girls with naturally curled eyelashes.