 This is accomplished by copying human skin tissue and then tying it down to the artificial material that makes up the underlying face using elastin and collagen. The end result isn't something resembling a young or brawny Arnold Schwarzenegger, but the skin more easily moved with the robot's movement, unlike a synthetic covering, and if it did tear, it healed itself. The researchers say it could be useful to learn things about aging or plastic and reconstructive surgeries. Eben Brown, Fox News.