This is a not too thick not too thin waterbased serum, contains highly nutritious peptide, and black bean extract, both helps the eyelashes be stronger and abundant. The applicator wand is really helpful because of the round tip, it makes application on the top part, and the lower lashes super easy. I have super sensitive eyes and this didn't give me any discomfort or irritation, I even accidentally poked my eyes while applying this several times and it didn't sting at all, it's just like natural tears.
I've used the serum every night as the last step of my routine for 4 weeks with no skip, and I was really impressed! The improvement of my lashes just after 4 weeks of use is really visible. My lashes are thicker and a tad longer I can also feel that they're heavier, it's around 1-1.5mm longer compared to before I started using this serum, how awesome is that!?