Maybe we’re biased, but this is the best eye shadow primer out there, bar none. Why is it so incredible? For starters, how about the 8-plus hours of performance it delivers? Or the fact that it turns every shadow – regardless of formula – into longwear? This lightweight, nonsticky color-intensifier and crease-minimizer goes on nude and once it dries down, it’s invisible. You’ll know it’s there, though. And so will your shadow.