I do not wear eye makeup without first applying Urban Decay's Primer Potion. It is an amazing product that essentially absorbs oil, preventing the dreaded crease that often appears halfway through the day with eyeshadow alone. Another problem often experienced with eyeshadows is that the color one sees in the packaging is very rarely the color that one sees once the color is applied to the eyelid. Primer Potion magically makes any eyeshadow color brighter and truer, so the color you see is the color you get. This makes Primer Potion a standout against other eyeshadow primers. This product was recommended to me by a Sephora employee, which made me a bit wary. However, after applying a heavy dosage of shadow atop a coat of Primer Potion, and stepping out of a steaming shower with my makeup completely intact and flawless, I was sold. Another application I use this product for is to aid in concealing pimples. When applied under makeup, it absorbs excess oil, helping to dry out the blemish, and adheres to the concealer, completely eliminating redness. Urban Decay makes two versions of Primer Potion, Ultra-Sheer Nude, and Champagne. I have only used the Nude. The Champagne is brand new and looks as though it would ass a hint of sparkle to anything applied over it.