Why test products for people on animal's skin when we can use people skin?

Fans of Vsauce 2 rejoice! A new video is out!
https://www.youtube.com/watch?v=RMHRWLHZUn4
Man did this one get me thinking. For those of you that don't know, V-sauce 2 is a channel on youtube featuring a show called mind blow, where the host goes over various emerging technologies and their progress. In this video the 3d printed skin segment (about 18 seconds in) really got me thinking about the video we saw in class, and the various problems with animal testing. We have the ability to test products on actual human skin now, and yet I fear we'll keep using animal testing because companies won't find changing their methods cost effective. As the animal emancipation video described, it is a 9 to 5 job, and the testing facilities will just keep doing what they do until they're told otherwise. I'm sure the printed skin has its problems, but it has got to be more accurate than animal testing. Hopefully more useful technology will come up in the future to replace old and barbaric practices, and hopefully when they do, people will actually decide to use them.

here are the links V-Sauce provides to the articles about the printed skin

http://ir.organovo.com/news/press-releases/press-releases-details/2015/LOreal-USA-Announces-Research-Partnership-with-Organovo-to-Develop-3-D-Bioprinted-Skin-Tissue/default.aspxhttps://www.youtube.com/watch?v=-A-uH...
https://www.youtube.com/watch?v=s3CiJ...