I really love this liquid eye-liner. It is soo smooth. And I mean - really smooth: very easy and fast to apply even for me, who is really bad at eye-lining.
The brush is very soft and that helps to achieve a really fine line.
Another great point - the staying power of this was amazing: no smudges after a whole day out.
And - it comes off pretty easily with normal mizellar water or oil cleanser. No need to rub your eyes for infinitive amount of time -> less wrinkles :)
However, please take into account, that the company Flowfushi was closed in October 2018 and rebranded to UZU in 2019, so this batch of eyeliners were probably manufactured in 2018 - unfortunately, I did not find any best before date on the package.