I love this primer! It has wonderful staying power and works with all of my eyeshadows -- not just the other Urban Decay ones -- in order to really bring out the pigment in them. It's super easy to apply but you only need a little bit and to apply the shadow to it while it's still relatively wet. If I get distracted while doing my makeup and apply eyeshadow on top of it after it's dried I find it doesn't work as well for me, and if I apply too much product and it dries, it can be difficult to remove. However, it absolutely does what it's supposed to do, and even the sample size that I got with my Naked palette (I have the full size, too!) lasts ages. This is a must have for eye shadow lovers -- it really makes your products look that much nicer and stay that much longer!

Great staying power. Makes shadows stay 10-12 hours even if they are cheap drugstore brand.

This is the only primer I use. It has amazing staying power and prevents my eyeshadow from creasing and my eyeliner from smudging!

This is a great eye primer to use under any eye shadow! It really increases the wear-ability of your shadow, and enhances the pigment. It's a must have product to create a look that will last all day and all night! I can't think of putting on eye shadow without this as a base. Best primer out there!

This is probably the best eyeshadow primer that I have ever used. It makes your eyeshadow stay all day long with no crease. You don't even need to put on too much, a very little drop is enough.

A little goes a long way. Lasts all day with zero crease in my shadow. This product has been the number one eyeshadow primer for years for a good reason!

I've been using this product for a long time. I love how long lasting it is and how far a little bit of product goes!

This has got to be the best eyeshadow primer I have ever used. Without this primer potion, my shadow is wearing off within an hour. With the primer potion I'm able to have my shadow looking great all day. 5 stars!

This eyeshadow primer makes your eyeshadows last so much longer and have way better coverage. The original one works best and is very easy to use. I got this as a sample and had to repurchase.

I have oily skin so this was great discovery for me.