This one is a flexible formula.
I liked it ok, and it did what it said it would: coat my lashes but leave them flexible, not stiff or crunchy. I also liked how easy it was to remove. But I felt like it didn't wow me, so I tried it over others.
This is layered over Essence 24hour mascara:
I liked it better layered, because it is lighter and softer than two layers of other mascaras. I liked using the big brush more over the base mascara since I didn't need to coat every lash.