Knowlton Development Corp (KDC/ONE) has acquired Alkos Group, a Paris-based manufacturer of private label cosmetics products in France. KDC/ONE, a Longueuil, Québec-based custom maker of beauty, health and personal care brands, said the acquisition provides it with a partner in the European market and expands its presence in the global cosmetics industry. KDC/ONE was acquired last year by a consortium led by U.S. private equity firm Cornell Capital for more than $1 billion. HarbourVest Partners was among the other investors. The seller was Canadian mid-market private equity firm Novacap, which acquired the business in 2002.