As long as there is regulation as to what they put into it and thorough tests.
Personally, you are what you eat. You eat synthetic, your cells will be using that to re-create themselves. Not a fan of that approach. Of course this in itself is cool, its the "culmination" of all these different "synthetic" solutions that bother me. Especially know that there exists technologies that can help people regenerate their own cells in slow, trickling effects. It's a step in the right direction if there is regulation.
You combine all the synthetic this, synthetic that, with bio-robotics which is soon becoming a reality, the FDA JUST legalized microchips to be used in their products, and also the Verichip. A new "obamacare" bill that is trying to be passed also allows the use of foreign like agents to possibly be inserted into people in the future.
Sorry to be a skeptic. I'm just hoping more scientists step in to ensure this whole process is theirs- and not those who simply want to make money.