Sciency Superheros

TERMINATOR:
In a few seconds the face of Terminator 1000, in Terminator 2 , which was shot by a air compressed gun, just goes back together. But would it be possible ? Well it would be possible on some miniature spheres on the top of the skin hold a bit of a liquid that is filled with a chemical that reacts with the material and recovers the whole and soldifies. The only inconvenient is that it only works once it is not a reusable material. But what does it have to do with real life? If scientist where able to make this type of mini spheres with a real cicatrising liquid, they would make a great pouder that could make you face look perfectly smooth and with a great tint.