With the new formula, DND gel polishes only requires only gel colour and topcoat, and eliminating the use of a basecoat and bond-aid. It lasts to 21 days. LED and UV compatible. The 2019 DC Mermaid Collection creates that legendary aquatic glimmer and sparkling effect, looking like you have came from under the sea. Similar to the golden shimmer when the sun hits the ocean, your nails will give off the same eye catching, iridescent sparkle! Available in gel polish format only.