Smashbox 24 Hour Photo Finish Shadow Primer is the best ‘invention’ ever and a must have in your makeup bag. This shadow primer intensifies your eye shadows and eye liner and makes it last all the long. Don’t leave the house without it! Use it with Smashbox Full Exposure Palette it works well together. When I first got the Smashbox eye shadow palette I used it without the primer and the eye shadows felt sheer and didn’t ‘stick’ to eye lid. Once I used the Smashbox shadow primer the eye shadows intensified and made it look and feel pigmented. Pretty amazing.