#retinol

#retinol

Dr. Christine Hall grew up in the UK but spent most of her summers in South Korea, which gave her an appreciation of both Western and Korean skincare cultures. The qualified physician and pharmacist-turned "glass skin" specialist told Business Insider that she combines West and Korean skincare products and techniques to keep her skin looking radiant and aging healthily. "Ideally, I would want that kind of flawless, dewy, glowy skin," she said, but is also realistic, adding: "If you had poreless skin, your skin wouldn't be healthy. Your pores are normal anatomy, they're there for a reason."

Rachel Zoe has built her career around helping people look and feel their most stylish. In fact, the fashion guru is one who helped define early to mid-aughts celebrity style - think Nicole Richie and her oversize sunglasses, long, layered necklaces, and flowy boho 'fits, and Lindsay Lohan's ludicrously capacious bag era. The designer is also a disciple of the idea that looking and feeling good extends beyond what you wear.