Skincare is a multi-billion-dollar industry. But do skincare products really work? Vishala Sri-Pathma hears from Amy Elizabeth, a beauty expert at the shopping channel QVC, and dermatologist Dr Anjali Mahto. And Tim Caulfield, professor at the University of Alberta in Canada and author of the book Is Gwyneth Paltrow Wrong About Everything? explains why people still buy beauty products even through they know many of their scientific claims are wrong.

(Photo: Woman with clay face mask, Credit: Getty Images)