Love love love this eyeshadow primer!
It's incredibly easy to apply, a tiny bit goes a very long way (it may seem pricey, but I've been using mine daily for over a year and it's still over 1/4 full), and I really love that it has a tiny bit of colour to it so that it smooths out any imperfections before putting eyeshadow on (I tend to get awful little bumps and whiteheads on the bottom of my brow bone and my UDPP takes care of the redness from them beautifully!).
I'm naturally pretty oily and use a lot of loose, shimmery eyeshadows and they simply do not BUDGE all day when I use this stuff, plus I get better colour payoff from most shadows when I first apply them as well.
The only other eyeshadow primer I've found that even comes close is by NARS, and I didn't get to trial that for long enough to really compare the two, plus it doesn't have that bit of colour to it, so I can't see myself switching from my trusty UDPP any time soon.
In love with this! I have used other primers or bases and this is awesome. Applies really smoothly, you don't need much! and sets really quick. It's stinking hot and I'm 33 weeks pregnant, so I'm a hot, sweaty mess but this stuff keeps my eyes looking on point.
I use it on the lower lash line as well to help stop my mascara from transferring and it's working so far and stops me from getting panda eyes.
Tips: Don't use too much! A little goes a long way. Apply it to the lower lash line too!