With a client roster including Rooney Mara, Ellie Goulding and Lily Allen, facialist Ada Ooi knows a thing or two about glowing skin.
Originally from Hong Kong, Ooi spent weekends growing up at her grandfather’s pharmacy in nearby Macau. “I would sit next to him every Saturday, I was the girl grinding all these herbs and pastes for the customers,” Ooi remembers. “I picked up a lot about the good feeling of helping people.”
Another thing she learned from...