This Bow nail polish Mutation is a thermal polish that changes between three colors or more specifically, shades of one color that shift from on to another based on the temperature. Its warmest shade is semi-sheer light grey with a green undertone. The second, in-between shade is blue-green. The coldest shade is the darkest, almost-black teal, more green than blue. The holographic particles in the polish are clearly visible in all three states. Shown in the photos in three coats plus top coat. Size: 11ml Color: Light grey with green undertone (warm) to blue-green to black teal (cool) Application: 2-3 coats Finish: Thermal Big 5 Free, Vegan & Cruelty-free