Environmental impact of the beauty industry’s demand for collagen

Collagen is getting celebrity endorsements as a hair and skincare product — but the billion-dollar industry has been linked to deforestation in the Amazon, and the large-scale slaughter of donkeys and other livestock in Africa. We talk to Andrew Wasley, food and agriculture reporter for the Bureau of Investigative Journalism; Sian Edwards, campaigns manager at The Donkey Sanctuary in the U.K.; and Michael White, a pharmacist and distinguished professor at the University of Connecticut School of Pharmacy.