Beauty brand Hairstory named Dina Rosenbloom as chief executive officer.    Rosenbloom joined the brand last year as chief marketing officer, working to fuel the brand’s next phase of growth and development while reinforcing its commitment to sustainability, company officials said.   “As the new leader of Hairstory, my mission is to continue and progress our commitment to sustainability and simplicity in haircare, focusing on creating high-quality, environmentally responsible hai...