Real estate mogul Ryan Serhant on his favorite skincare, workout essentials and his new book

Long gone are the days when Ryan Serhant was merely selling New York’s million dollar listings on Bravo. Since becoming a star of the small screen back in 2012, Serhant has turned his name into a brand and built an empire of personality that mixes media (books, TV, TikTok, even education) with the hard-nosed business...