To create the mermaid glitter effect, first it’s recommended to coat your nails with white crème gel polish because it makes neon colors to appear brighter. Then, paint your nails in two halves with different colors to create the gradient effect. Use a brush to blend it. When you’re done blending, apply a special nail polish for mermaid effect and last step is covering the nails with topcoat. You can use other colors if these aren’t your thing!