Can’t… stop… staring… at… my… nails! Wait until you see this. Orly Gel FX Shade Shifter is a color changing gel polish that goes from clear to black based on the temperature of your hands. You apply two coats over top of any base color and it goes clear to show the color underneath when your hands are warm, and is black when your hands are cold. In my pics below, you can see that there are also some transitional stages. I am so in love with this, and hope they make some other colors available other than just clear-to-black. The base color seen in this demo is Tiki Tiki Laranga from Gelish. I found Shade Shifter available for sale on Amazon.com.