Nails Inc. is premiering its much-hyped Paint Can spray-on nail colour, marketed as a world-first, in UK department stores this month. The polish will be available in two colours for now, before the full collection hits in 2016. The Paint Can requires users to sweep a quick layer of basecoat over the nails before spraying the colour over the fingertips from a distance of 10-15cm, leaving the pigmentation to adhere to the basecoat. According to the brand, a quick rinse with warm, soapy (...) - Innovation…