Holographic nail polish is made from ingredients containing holographic particles that create a 3D effect when exposed to light. After application and drying, the "holo" nail polish takes on a shimmering appearance, which resembles a rainbow.
Holographic nail polish works by using the principle of light diffraction, which occurs when particles capture light at various angles. As the wearer moves her fingers, the light bends and causes a perceived change in colors. To create this effect, a base coat is applied to the nails and allowed to dry. The holographic nail polish is applied over the base in two thin layers.