US health and beauty retailer Cosmetics LK has announced the acquisition of Prolana, a nail care firm, for an undisclosed sum. Founded and launched in 2007, Prolana markets its flagship Nail Optimizer brand as a one-step solution for restoring and strengthening thin, brittle nails. Cosmetics LK said it had “bold plans” to develop the Prolana product range in 2018 by committing additional resources to research and development. Cosmetics LK is an e-commerce retailer …