PAT McGRATH LABS IntensifEYES Longwear Primer intensifies shadow vibrancy for looks that last. This prep-and-set eye primer boosts eyeshadow color and ensures crease-proof, non-smudging wear for up to 24 hours. Use the doe foot applicator to apply sparingly to the lid, blending from lashline to brow bone before layering shadows on top. It can also eliminate lower lash line creasing and prevent lip feathering.