I bought this product because I was hoping it would help my eyeshadow and liner last a little longer. I have very, very oily lids and nothing seems to stay on them. My eyeshadow creases badly (and I use an eyeshadow that's higher end and isn't supposed to crease!) and my eyeliner - even pencil eyeliner - runs and smudges but not in a good way! I don't know about you, but the whole Alice Cooper look isn't for me! lol.
Anyway, this product just didn't do it for me. It helped make my shadows and liner last a teensy bit longer but not by much. It's basically the same as smeering some foundation or concealer on your lids without powder and then applying your shadow and liner - ie, it doesn't last well.
If you have very oily lids I advise you not to waste your money. There are products out there that are at a better price that actually work. I'm actually about to write a review on one that I found - check out my page if you're interested.
The best thing is that if you have a nice Mary Kay lady, she will probably exchange this product for something else if you want, since Mary Kay has a 100% satisfaction guantee.