I've tried other expensive ones (more well-known ones), but this is the only one that actually works! It doubled the length of my lashes and made them longer. However, consistency is key to seeing results. This is a must in my daily routine; I use it both morning and night, or only at night (safer for the eyes).
One downside is that you can see there is a lot of product left in the bottle but can't reach it, so you end up buying a new one or using a cotton swab, for example. Sometimes, when you stop using the serum, some of your lashes may start to fall out (not a lot, but it's noticeable).
I've been using this for years and highly recommend it.
