Inside the Lab that Grows Human Skin to Test Your Cosmetics
Monday is shipping day at MatTek. A truck pulls up to its red brick lab outside of Boston to load box after box, all kept at a cool 39 degrees. The precious, perishable cargo is human skin\u2014thousands of dime-sized pieces in plastic dishes that add up, altogether, to about two whole adult humans\u2019 worth. Every week. It\u2019s not harvested from people, though.