Natio Nail Colour Peony Long-lasting, wearable nail colour in a range of great colours. Fast drying, formaldehyde-free nail colour. Before painting nails, swish nail polish remover over nails to remove surface oils. The colour will adhere better. Always paint on clean, dry nails. For a lasting finish, allow plenty of time for each coat to dry. How To Start with a layer of Natio Top and Base Coat to protect nails and guard against staining. When dry, apply two thin layers of Natio Nail Colour (rather than one thick layer) ensuring the first coat is completely dry before applying the second. This deepens the nail polish colour.