A self-proclaimed “beauty junkie,” Nicholas Hieronimus has been at L’Oréal SA for nearly four decades. In that time, the beauty industry has changed dramatically. E-commerce and social networks have lowered the barrier to entry for startups, dermatological division have become a focus and more men are using beauty products. He predicts that beauty will be a market close to €400 billion ($426.8 billion) by 2030 from €270 billion now.