Silk This eye primer and top coat pigment creates a wrinkle-proof eyeshadow base with a luminous metallic sheen. This eye-opening formula glides on with professional precision and builds up with exceptional ease with the use of the included latex-free silicone applicator. Use alone as an iridescent cream shadow, under mineral eyeshadow for visibly more vibrant color, or over mineral shadow as a top coat to amplify color and add dimension to your look.