If there is any doubt that the business of beauty represents real business one just has to visit Cosmoprof. The show is so vast that this journalist found herself frustratingly lost at the end of the day, having taken a wrong turn amid a seemingly endless myriad of halls and exhibition spaces in a venue which puts Dublin’s RDS in the ha’penny place. It’s so large that visitors would be advised to have a good plan of action and a sturdy pair of walking shoes to avail of the opportunity it affords – whether they’re interested in sourcing product from…