A few reasons why I prefer Too Faced Shadow Insurance better then the Urban Decay Primer Potion:
-the tube is very easy to get all the product out and you won't need to cut open any packages/tubes.
-a little goes a long way. All you need are 2-3 dots to cover you're entire browbone and lid. It also dries quickly and you're ready to go.
Other things I liked about this is that my eyeshadow doesn't crease, even after I once fell asleep with all my make up on! Crazy. I've read some reviews where people say this product sucks and does creases but honestly, I don't understand how that could be possible. As soon as it dries, it transforms into a matte/dry finish and my lids never get oily when I have this on. Plus it intensifies shadow colors.
My only complaint is that the product can separate: when you squeeze some out you get a clear liquid first, so it's best to smush the product around in the tube before using so it mixes.
I use it with my cheaper eyeshadows like Coastal Scents eyeshadows, Revlon and Boots No7.
Have you tried this one? Which is your favorite shadow primer?
**I just read somewhere people use this as a lip primer.