IsaDora Gel Nail Lacquer - N 242 The Colored Gel Nail Lacquer and Gel Nail Lacquer Topcoat is a reactive combination that together gently solidifies and leaves a glossy finish that does not flake - no UV lamp is needed. Do this: Apply in daylight or indoor lighting. Apply two layers of the colored Gel Nail Lacquer and let it dry 3 minutes before applying the top coat. Apply a layer of Gel Nail Lacquer Top Coat. Net content: 6 ml / 0.2 Fl. oz.