Chances are, you or someone you know has used a cosmetic product that was tested on animals. Though once a common practice, it has faced fierce backlash from animal welfare organizations, who argue that animal testing is unnecessarily cruel. At least 44 countries and 12 U.S. states have already passed legislation banning the practice, with [...]The post 3D-printed ‘skin’ could make testing cosmetics on animals obsolete appeared first on Popular Science.